(ISE on sea trials, 24 August 1943-digitally colorized by Irootoko, Jr)

IJN ISE: Tabular Record of Movement

© 2000-2016 Bob Hackett, Sander Kingsepp and Lars Ahlberg
Revision 11

10 May 1915:
Kobe. ISE is laid down at Kawasaki Shipbuilding as a modified FUSO-class dreadnought. She is initially planned as the third unit of the FUSO-class, but for financial reasons, construction of ISE and HYUGA is delayed and thus it is possible to improve the original design.

1 September 1916:
Captain (later Admiral) Hyakutake Saburo (former CO of IWATE) is posted as Chief Equipping Officer and Supervisor for Construction and Ordnance.

12 November 1916:
Kobe. ISE is launched.

1 December 1916:
Captain (later Rear Admiral) Akizawa Yoshima (former CO of BB TANGO) relieves Captain Hyakutake as Chief Fitting-out Officer. Captain Hyakutake is posted as the CO of battlecruiser HARUNA.

23 July 1917:
Captain Akizawa is posted as the Commanding Officer of ISE that is still under construction.

15 December 1917:
Kobe. ISE is completed and commissioned in the IJN. Assigned to the Kure Naval District.

1 April 1918:
Attached to BatDiv 1, First Fleet.

1 December 1918:
Captain (later Vice Admiral) Kuwashima Shozo (former CO of BC HIEI) assumes command.

28 June 1919 - The Treaty of Versailles:
After the defeat of Germany, Japan is given a mandate over the ex-German islands of the Carolines, Palau, the Marianas and the Marshalls in the Pacific with the exception of Tsingtao, China.

20 November 1919:
Captain (later Vice Admiral) Furukawa Hiroshi (former CO of BB SETTSU) assumes command.

29 August 1920:
Departs Tateyama for patrol off the coast of Siberia.

7 September 1920:
Arrives at Otaru.

20 November 1920:
Captain (later Vice Admiral) Yokoo Hisashi (former CO of SETTSU) assumes command.

29 August 1920:
ISE, HYUGA, FUSO and HARUNA depart Tateyama for a cruise through the Sea of Japan and off the Siberian coast.

Elevation of main guns is increased from 20 degrees to 30 degrees and range increased from 25,000 to 27, 800 meters.

1 December 1921:
Captain (later Vice Admiral) Nagasawa Naotaro (former CO of AC NISSHIN) assumes command. Reassigned to BatDiv 1, First Fleet.

6 February 1922: The Washington Treaty:
Washington, DC. Japan, United States, Britain, France and Italy agree to limit the displacement and main armament of their capital ships, aircraft carriers and cruisers and to limit the total tonnage and age of their capital ships and carriers. Battleships and aircraft carriers are set at a ratio of 5:5:3 for the navies of Great Britain, the United States and Japan. Japan's Plenipotentiary at the conference is her Minister of the Navy, Admiral (later Fleet Admiral/Prime Minister), the Baron, Kato Tomosaburo.

12 April 1922:
Yokohama. HRH Edward, Prince of Wales (later King Edward VIII), makes a state visit to Japan on battlecruiser HMS RENOWN. The Prince is accompanied by his second cousin, Lt (later Fleet Admiral) Lord (later Earl Mountbatten of Burma) Louis Mountbatten. While at Yokohama, the Prince's party tours the ISE.

26 June 1922:
ISE, NAGATO and MUTSU depart Inchon, Korea to patrol off Lushun (Port Arthur), China.

4 July 1922:
Arrives at Chinhae, Korea joining CruDiv 3's KISO, KUMA and OI.

29 August 1922:
ISE, NAGATO, MUTSU, KONGO, HIEI and KIRISHIMA depart Kure for maneuvers off Siberian coast, making a brief call at St. Vladimir Bay.

7 September 1922:
Arrives at Otaru.

1 December 1922:
Captain (later Rear Admiral) Kanna Norikazu (former CO of BB FUSO) assumes command.

25 August 1923:
ISE departs Yokosuka to patrol the Chinese coast.

1 September 1923:
The Great Kanto Earthquake occurs. ISE and HYUGA depart Changshan archipelago, Korea Bay, for Uchinoura Bay, Kyushu, to embark medical supplies and food. About 140,000 Japanese are killed by the earthquake and the fires caused by it.

4 September 1923:
Arrives at Ariake Bay.

1 December 1923:
Captain (later Rear Admiral) Fukuyo Heizaburo assumes command.

9 October 1924:
ISE departs Tateyama for high sea exercises.

21 October 1924:
Arrives at Sasebo.

1 December 1924:
Captain (later Rear Admiral) Wada Kenkichi (former CO of AC TOKIWA) assumes command.

22 August 1925:
Captain (later Rear Admiral) Yonemura Sueki (former CO of AC ASAMA) assumes command.

1 December 1925:
Captain (later Rear Admiral) Taoka Katsutaro (former CO of CL CHIKUMA) assumes command. Attached to BatDiv 1, First Fleet.

30 March 1926:
ISE departs Nakagusuku Bay, Okinawa to patrol off Amoy, China.

5 April 1926:
Arrives at Mako, Pescadores.

20 April 1926:
Departs Keelung, Formosa for operations off the Chushan archipelago

26 April 1926:
Arrives at Terajima Channel.

10 August 1926:
Participates in the sinking of destroyer YAYOI (Kamikaze class) in the Bungo Strait with NAGATO, YAMASHIRO, SENDAI and YURA.

1 December 1926:
Captain (later Vice Admiral) Kawano Togo (former CO of CL KITAKAMI) assumes command.

A flying-off platform is fitted to No. 2 main caliber turret for a Mitsubishi 1MF3 Naval Type 10 fighter (both are landed during the next year). Anti-torpedo net booms are removed.

27 March 1927:
ISE, HYUGA and NAGATO, escorted by CruDiv 3, CruDiv 5 and SubRon 1, depart Saeki Bay for a joint cruise to Tsingtao, China.

7 April 1927:
Arrives at Lushun (Port Arthur), China.

1 December 1927:
Captain Nambu Michijiro (former CO of AS CHOGEI) assumes command. Departs Kure for Tsingtao, China. Placed in reserve at Kure.

Rebuild at Kure. ISE's foremast is built up in the fashion pioneered by HARUNA, adding several new levels and control stations. Her fore funnel is fitted with a curved smoke cap. A different type flying off platform for Yokosho E1Y2 Type 14 floatplane is fitted atop No. 5 main caliber turret.

10 December 1928:
Captain (later Rear Admiral) Iwamura Kanekoto (former CO of CA KINUGASA) assumes command.

31 March 1929:
Drydocked at Sasebo.

5 June 1929:
Arrives at Kure.

23 June 1929:
Kure. Drydocked.

5 October 1929:
Captain Ikeda Takeyoshi (former CO of CL YURA) assumes command.

30 November 1929:
Captain (later Vice Admiral) Hara Keitaro (former CO of CA HAGURO) assumes command. Attached to BatDiv 1, First Fleet.

Kure. Drydocked. Platforms are fitted to ISE's tripod foremast and searchlight platforms are fitted around her aft funnel. A derrick is installed at the stern for handling floatplanes.

28 March 1930:
Departs Sasebo with YAMASHIRO for Tsingtao.

3 April 1930:
Arrives at Darien, Manchuria with YAMASHIRO.

22 April 1930: The London Treaty:
London. The Treaty for the Limitation and Reduction of Naval Armament is signed by Japan, Great Britain and the United States. It is an extension of the Washington Naval Treaty of 1922. The signatories agree not to build new capital ships until 1937. A number of existing capital ships are to be scrapped.

1 December 1930:
Captain (later Rear Admiral) Hani Rokuro (former CO of CA ASHIGARA) assumes command.

29 March 1931:
Departs Sasebo for operations off Tsingtao, China.

5 April 1931:
Arrives at Chinwangtao area, China.

5 June 1931:
Kure Navy Yard. Drydocked. Forward paint shop is converted to avgas storage tank and ventilation system is upgraded.

23 June 1931:

September 1931: The Manchurian Incident:
Manchuria. Japan claims Chinese soldiers sabotaged the Japanese-controlled Manchurian railway. The Japanese Kwantung army attacks the Chinese Army and soon conquer all of Manchuria. They set up the puppet state of Manchukuo headed by the former Emperor of China, Henry Pu-Yi. China appeals to the League of Nations. The League sends V. A. G. R. Bulwer-Lytton, 2nd Earl of Lytton, to Manchuria to lead a Commission to investigate.

20 November 1931 -10 February 1932:
Kure Navy Yard. Drydocked for armament upgrade. Mainmast top section is shortened. Type 91 "diving” APC shells are introduced. All 3-in/40 AA guns are replaced by eight 127-mm/40 Type 89 AA guns (4 x 2). Four 40mm Vickers AA guns (2 x 2) are added. Both shielded 140-mm/50 secondary guns from the forecastle deck are landed. Catapult and aircraft handling crane engine blisters are fitted to the fantail. New paint on underwater body.

1 December 1931:
Captain (later C-IN-C, Combined Fleet/Fleet Admiral, posthumously) Koga Mineichi (former CO of CA AOBA) assumes command.

10 February 1932:
Kure. Undocked.

27 March 1932:
ISE, KONGO and KIRISHIMA depart Sasebo, followed by HYUGA a few days later. The battleships patrol off Chinese coast after the First Shanghai Incident occurs.

3 April 1932:
The squadron arrives at Dairen, Manchuria.

1 December 1932:
Arrives at Kure. Captain (later Rear Admiral) Tabata Hiroyoshi (former CO of CA NACHI) assumes command. Placed in 2nd reserve at Kure.

5 February 1933:
Geneva, Switzerland. The League of Nations. The Lytton Commission reports that Japan violated Chinese sovereignty and should return Manchuria to China. At a Special Assembly, 40 nations vote that Japan should withdraw. Only Japan votes against it. Instead of returning Manchuria, Japan instructs its representative Yosuke Matsuoka (later Foreign Minister), to walk out of the League. After withdrawing from the League, Japan also decides that she will no longer abide by restrictions such as the Washington of 1922 and the London Treaty of 1930 that impose limitations on the number and size of her warships.

14 May 1933:
Kure Navy Yard. Drydocked. A mounting for Kure Type No. 2 Mod. 3 catapult is installed to the starboard side of the fantail with a collapsible crane. Later, three Type 90 seaplanes are embarked.

6 June 1933:

16 August 1933:
ISE departs Tateyama for high seas operations in the South Seas.

21 August 1933:
Arrives at Kisarazu.

15 November 1933:
Captain (later Vice Admiral) Yamamoto Koki (former CO of MAYA) assumes command. ISE is assigned to the Gunnery School as a training ship.

15 June 1934:
Tokyo. A state funeral is held honoring Japan's greatest naval hero, Fleet Admiral Count Togo Heihachiro, victor at the Battle of Tsushima in 1905 during the Russo-Japanese War. The crew of ISE, anchored at Shinagawa Bight, participates in the ceremony.

25 September 1934:
Kure Navy Yard. Drydocked. ISE begins modernization remodelling of her engines.

1 November 1934:
Captain (later Vice Admiral) Shimizu Mitsumi (former CO of CL TAMA) assumes command.

15 November 1934:
Attached to BatDiv 1, First Fleet.

Late 1934:
A catapult, rails and a turntable are installed on the fantail for three Nakajima E4N2 Type 90 floatplanes.

1 August 1935: First Reconstruction:
Modernization at Kure Navy Yard. ISE's 24 mixed-fired boilers are replaced by eight new Kampon oil-fired boilers and new Kampon geared turbines are fitted. Maximum speed is increased to 25.4 knots (25.21 knots were reached during trials). The fore funnel is removed and stern lengthened by 25 feet. The thickness of the horizontal armor over her magazines and machinery spaces is increased. Torpedo bulges are added and her six submerged 21-inch torpedo tubes are removed.

The elevation of ISE's main caliber guns (with the exception of the aftermost turret No. 6) is increased to 43 degrees. Two forward 5.5-in casemate guns are removed. The elevation of secondary guns is increased from 20 degrees to 30 degrees and range increased to 19,100 m (from 15,800 m). Four 40mm Vickers AA guns are replaced by ten twin 25 mm AA guns. The catapult is replaced by a Kure Type No. 2 Mod. 5 catapult and the aircraft handling deck is extended. Ten Type 96 twin 25 mm AA guns fitted. A 10 m rangefinder is fitted atop the superstructure.

15 August 1935:
ISE is rerated a Reserve Ship, Third Class.

31 October 1935:
Captain (later Rear Admiral) Sekine Gumpei (37)(former Gunnery Officer of AC NISSHIN) assumes command.

16 November 1936:
Captain (later Vice Admiral) Takasu Sanjiro (37) (former CO of AS TAIGEI) assumes command. ISE makes 25.26 knots in official speed trials.

23 March 1937:
ISE's modernization is completed and she is re-commissioned. Her standard displacement is now 35,800-tons.

1 December 1937:
Captain (Vice Admiral, posthumously) Yamaguchi Tamon (former CO of CL ISUZU) assumes command. ISE is assigned to BatDiv 1, First Fleet.

Spring 1938:
Three Nakajima E8N1 Type 95 ("Dave”) floatplanes are embarked.

9 April 1938:
ISE, MUTSU and KONGO depart Terajima Channel for the southern Chinese coast, escorted by cruisers CHOKAI and MAYA. At sea, the squadron rendezvouses with HYUGA and KIRISHIMA from Sasebo, accompanied by CruDiv 8, DesRon 1 and SubRon 2.

14 April 1938:
The squadron arrives at Keelung, Formosa.

17 October 1938:
Departs Terajima Channel with HYUGA, KIRISHIMA and KONGO and operates off south China districts.

21 October 1938:
At Amoy, China. Early in the morning, ISE and KIRISHIMA are photographed from British light cruiser HMS BIRMINGHAM.

23 October 1938:
Arrives at Mako, Pescadores with HYUGA, KIRISHIMA and KONGO.

15 November 1938:
Captain (later Vice Admiral) Yamaguchi Gisaburo assumes (former CO of CL OI) command.

22 March 1939:
Departs Kagoshima with KIRISHIMA and KONGO and operates off north China coast.

2 April 1939:
Arrives at Terajima Channel with KIRISHIMA and KONGO.

15 November 1939:
Captain (later Vice Admiral) Omori Sentaro (former CO of AV KAMIKAWA MARU) assumes command.

26 March 1940:
Departs Ariake Bay with KONGO and HARUNA and operates off south China districts.

2 April 1940:
Arrives at Takao with KONGO and HARUNA, Formosa.

15 October 1940:
Captain (later Vice Admiral) Takayanagi Gihachi (former CO of CA SUZUYA) assumes command.

15 November 1940:
Attached to BatDiv 2, First Fleet.

Late 1940:
Four Type 95 HA directors are installed, bulge tubes and degaussing coil are fitted.

24 February 1941:
Departs Sasebo with HYUGA and HIEI and operates off the south China coast.

3 March 1941:
Arrives at Mako, Formosa.

6 March 1941:
Departs Mako, Formosa.

11 March 1941:
Arrives at Ariake Bay.

28 March 1941:
Departs Ariake Bay.

29 March 1941:
Arrives at Kure.

26 April 1941:
Arrives at Kure with HYUGA.

27 April 1941:
Arrives at Sukumo Bay with HYUGA and HIEI.

3 June 1941:
Departs Sukumo with HYUGA and HIEI.

21 June 1941:
Arrives at Yokkaichi.

28 June 1941:
Arrives at Ariake Bight. Departs the same day.

30 June 1941:
Arrives at Yokohama with HYUGA.

6 July 1941:
Departs Yokohama with HYUGA. Arrives at Kisarazu across Tokyo Bay.

8 July 1941:
Departs Kisarazu.

11 July 1941:
Arrives at Ariake Bight.

21 August 1941:
Arrives at Hashirajima.

3 March 1941:
Arrives at Mako, Pescadores.

25 September 1941:
Captain (later Rear Admiral) Takeda Isamu (former CO of OI, KASHIMA) is posted as Commanding Officer.

15 November 1941:
ISE is flagship of Vice Admiral (later Admiral) Takasu Shiro's (former CO of CL ISUZU) First Fleet in BatDiv 2 with HYUGA, FUSO and YAMASHIRO.

8 December 1941: Operation "Z" – The Attack on Pearl Harbor:
BatDiv 2 sorties from the Combined Fleet's anchorage at Hashirajima in Hiroshima Bay to an area S of the Bonin Islands with the First Fleet's BatDiv 1's NAGATO and MUTSU and CarDiv 3's light carrier HOSHO escorted by DesDiv 21's WAKABA, NENOHI, HATSUHARU and HATSUSHIMO and DesDiv 27's ARIAKE, YUGURE, SHIRATSUYU, SHIGURE, MIKAZUKI and YUKAZE.

13 December 1941:
The First Fleet returns to Hashirajima.

13 December 1941-February 1942:
Hashirajima. BatDiv 2 maintains 'standby alert' and conducts battle training in the Inland Sea.

19-25 February 1942:
Kure. Minor refit.

4 March 1942:
Thirty-eight aircraft of Vice Admiral (later Fleet Admiral) William F. ("Bull") Halsey's (former CO of SARATOGA, CV-3) Task Force 16's ENTERPRISE (CV-6), SALT LAKE CITY (CA-25) and NORTHAMPTON (CA-28) make a dawn raid on Marcus Island, located between Midway and the Bonin Islands - about 1,000 miles from Tokyo.

6 March 1942:
Headquarters, Combined Fleet orders CarDiv 5's SHOKAKU and ZUIKAKU, which has just left port for Truk, to divert to Chichi Jima in the Bonins to intercept Halsey's force if it approaches Japan.

11 March 1942:
The First Fleet's HYUGA and ISE sortie from Hashirajima to join the search for Halsey. The next day, the light cruisers TAMA and KISO and destroyers also sortie from Yokosuka in response to the alarm.

15 March 1942:
The IJN warships find nothing and are ordered to return to their ports.

16 March 1942:
ISE and HYUGA arrive at Ise Bay.

20 March 1942:
Departs Ise Bay.

24 March 1942:
ISE arrives at Hashirajima, two days after HYUGA.

18 April 1942: The First Bombing of Japan:
Halsey's Task Force 16.2's USS HORNET (CV-8), VINCENNES (CA-44), NASHVILLE (CL-43), oiler CIMARRON (AO-22) and destroyers GWIN (DD-433), MEREDITH (DD-434), GRAYSON (DD-435) and the MONSSEN (DD-436) accompanied by Task Force 16.1's ENTERPRISE (CV-6), SALT LAKE CITY (CA-25), NORTHAMPTON (CA-26), oiler SABINE (AO-25) and destroyers BALCH (DD-363), BENHAM (DD-397), ELLET (DD-398) and FANNING (DD-385) approach the Japanese home islands. The carriers and cruisers come to within 668 nautical miles of Japan.

Led by Lt Col (later General/Medal of Honor) James H. Doolittle, 16 Army B-25 "Mitchell" twin-engine bombers of the 17th Bomb Group take off from Captain (later Admiral) Marc A. Mitscher's carrier HORNET and strike targets in Tokyo, Yokohama, Osaka, Nagoya and Kobe. At Yokosuka, a B-25 damages light carrier RYUHO in a drydock while undergoing conversion from former submarine depot ship TAIGEI.

Bat Div 2 and ten destroyers depart Hashirajima in pursuit of Halsey's ships.

19 April 1942:
At 30-00N, 135-20E, one of Bat Div 2's Type 95 Nakajima E8N "Dave" two-seat reconnaissance floatplanes, armed with two bombs, sights a cargo ship. The biplane drops a message with an order to stop. About 1000, the BatDiv 2 group heading NE encounters neutral Russian merchant ANGARSTROI. A destroyer sends a boarding party to search the Russian ship. The ship is found to be carrying 7,555 metric tons of sugar and 10 tons of other products from San Francisco to Vladivostok. The Japanese order the merchant to proceed with the destroyer to Kushimoto on Honshu for a further search. The BatDiv 2 group turns SE and departs in a further unsuccessful pursuit of the Americans.

22 April 1942:
Arrives at Yokosuka.

24 April 1942:
ISE arrives at Hashirajima, again two days after HYUGA.

5 May 1942:
BatDiv 2 departs Hashirajima for gunnery practice in the Iyo Nada with BatDiv 1's MUTSU and NAGATO. HYUGA's left gun breech in No. 5 turret blows up. Her two aft magazines are flooded to save the ship. Fifty-one crewmen are killed. HYUGA makes for Kure escorted by FUSO. ISE and the other battleships return to Hashirajima.

9 May 1942:
Departs Hashirajima for Kure with FUSO.

11 May 1942:
ISE's valves stick and her No. 2 engine room floods.

25 May 1942:
Kure. Undergoes engine room repairs. ISE is also fitted with one of the first experimental model Type 21 air surface search radar sets in the IJN. She conducts tests in detecting HYUGA successfully in the Iyo Nada.

29 May 1942: Operation "MI" - The Battle of Midway:
BatDiv 2 departs Hashirajima as screen for the Aleutian Force with CruDiv 9's KITAKAMI and OI, 12 destroyers and the 2nd Supply Unit's oilers.

17 June 1942:
ISE and HYUGA use their radars to check their respective locations while returning to Yokosuka. YAMASHIRO is able to pick up their impulses with her German FuMB 1 Metox-based radar detector. This occasion is used as an argument to accelerate the production of Japanese E27 detectors. Arrives at Yokosuka.

22 June 1942:
Departs Yokusuka for Hashirajima.

24 June 1942
Arrives at Hashirajima. Resumes 'standby alert'.

14 July 1942:
At Hashirajima. Vice Admiral Shimizu Mitsumi (former CO of ISE) assumes command of the First Fleet. Vice Admiral Takasu is later reassigned as Commander of both the 2nd Southern Expeditionary Fleet (Dutch East Indies Force) and the Southwest Area Fleet.

ISE and HYUGA are reassigned directly to the Combined Fleet.

July 1942-November 1942:
Hashirajima. BatDiv 2 continues 'standby alert' and battle exercises in the vicinity of Kure and Hashirajima thereafter.

August 1942:
To partially compensate for the loss of carrier strength at Midway, the Navy Aircraft Department begins plans to convert the ISE-class battleships to full-sized carriers each carrying 54 planes. This concept is abandoned due to lack of time and resources and the hybrid battleship/carriers concept is adopted.

21 August 1942:
Arrives at Hashirajima. .

21 November 1942:
Kure. Drydocked.

29 November 1942:

23 February 1943: Second Reconstruction:
Kure. Registered as a 4th rank (lowest) Reserve ship. This date marks the official start of the rebuild.

ISE is drydocked and begins conversion to a battleship/carrier. Her aft 36-cm. (14-in.) turrets Nos. 5 and 6 and their barbettes are removed, as is her 140-mm. (5. 5-in.) secondary casemate armament.

A hangar surmounted by about a 70 meter long flight deck is added to handle and launch aircraft, but not for landings. Plans call for the new hangar to carry nine planes inside, 11 on deck and two on each catapult. But the designers later realize that a single faulty aircraft engine can ruin the whole concept. To prevent jams, the deck is fitted with rails, 12 turntables, trolleys and tie-downs.

The enclosed hangar is 6 meters high, 40 meters long, and tapers from 28 meters wide forward to 11 meters aft. A "T"-shaped elevator is fitted in the after part of the flight deck. Two sets of rails run around the flight deck for maneuvering the aircraft to the 25-meter Type 1, No. 2, Model 11 catapults that are installed on tall supports on ISE's port and starboard sides forward of the flight deck. A collapsible derrick crane is fitted port abaft.

The new deck is covered with 200-mm. of concrete to compensate for the unbalanced condition created after removal of the aft armament. A one-meter thick layer of concrete is also poured around the main steering room and reserve steering rooms and a 150-mm horizontal armor cover is added.

ISE's suite of eight 127-mm. (5-inch) AA guns is increased to 16 (8 twin mounts). Her twenty (10 twin-mount) 25-mm (1-in.) AA guns are removed and replaced by 57 (19 triple-mount) 25-mm. AA guns. One Type 21 air-search radar is installed on the bridge. Two Type 22 surface-search radars are also installed.

Bombs and munitions are stowed in turret No. 5's magazine. Avgas and oil stores are located in the old turret No. 6 area. Two each 46-foot Daihatsu landing barges are substituted for some lifeboats.

ISE, as now modified, can carry 22 aircraft. The concept of operations calls for the modified ISE-class BB/CVs to accompany the Carrier Striking Force and catapult their complement of Yokosuka D4Y2 Suisei ("Judy") dive-bombers and Aichi E16A Zuiun ("Paul") seaplanes that are capable of diving attacks. These will add another 44 dive-bombers to the Striking Force. The aircraft cannot not take off from, or land on, the small flight deck; rather, they are to be catapult-launched and land either on conventional carriers or land bases. ISE's final aircraft allowance calls for 14 E16A and eight D4Y2.

25 April 1943:
Captain (later Rear Admiral) Hase Shinzaburo (former CO of OBB SETTSU) assumes command. Captain Takeda (later Rear Admiral) is reassigned as Chief of Staff of the Shanghai Special Area Base Force.

10 August 1943:
Kure. ISE's Second Reconstruction is completed. Reassigned to BatDiv 2, First Fleet.

23 August 1943:
Undocked. Departs Kure for full-scale trials in the Iyo Nada. During the rebuild additional fuel tanks were installed that give ISE a range of 9,500 nms at 16 knots. As now modified, she displaces 38,676-tons and carries a crew of 1,463.

24 August 1943:
Iyo Nada. ISE conducts speed trials and makes 25.3 knots.

26 August 1943:
Returns to Kure.

31 August 1943:
Moves to Hashirajima.

5 September 1943:
ISE is re-commissioned in the IJN.

15 September 1943:
Attached to the Etajima Naval Academy as a training ship for naval cadets.

8 October 1943:
The rebuild is officially completed.

9 October 1943:
Ujina (near Hiroshima). Embarks supplies and armament for the IJA Second Transportation Unit (approximately 2,000 troops) consisting of the 107th Infantry Regiment's 3rd Battalion with 7th and 8th Companies, a partial section of 2nd Machine Gun Company, remainder of 2nd Battalion, 7th and 9th Companies, 16th Mountain Artillery, company trains and the A Detachment of the 52nd Infantry Division.

14 October 1943:
Departs Ujina for Saeki.

15 October 1943:
ISE and YAMASHIRO depart Saeki for Truk on the "TEI No. 3" troop transport mission with a task group of CruDiv 18's light cruiser TATSUTA, DesDiv 32's FUJINAMI, SUZUNAMI and HAYANAMI.

ISE carries 1,278 men and 1,510 cubic meters of material. ISE also carries main gun shells for battleships FUSO, NAGATO and YAMATO. YAMASHIRO carries 804 men and 1,270 cubic meters of material. TATSUTA carries 105 men and 118 cubic meters of material and DesDiv 32's destroyers carry 243 men and 100 cubic meters of material.

15 October 1943:
ISE and battleship YAMASHIRO rendezvous at sea with the "TEI No. 3" troop transport mission also consisting of carriers JUNYO and UNYO, CruDiv 18's light cruiser TATSUTA, DesDiv 32's FUJINAMI, SUZUNAMI and HAYANAMI. About 2,000 men are lifted between the various ships. ISE carries approximately 1,000 soldiers of the Sabae regiment. These are the remaining elements of the 107th Infantry, 52nd Division. ISE also carries main gun shells for battleships FUSO, NAGATO, and YAMATO.

20 October 1943:
ISE and YAMASHIRO arrive at Truk. They debark troops and remain as guardships during the fleet's second sortie from Truk to Eniwetok in response to carrier raids on Wake Island by Rear Admiral Alfred E. Montgomery's Task Force 14 carriers ESSEX (CV-9), YORKTOWN (CV-10), LEXINGTON (CV-16), INDEPENDENCE (CV-22), BELLEAU WOOD (CVL-24) and COWPENS (CVL-25).

26 October 1943:
The fleet returns to Truk.

31 October 1943:
At 0800, BatDiv 2's ISE and YAMASHIRO depart Truk in a task group with CarDiv 2's JUNYO, escort carrier UNYO, CruDiv 8's TONE, CruDiv 18's TATSUTA, DesDiv 7's AKEBONO, DesDiv 17's TANIKAZE, DesDiv 24's SUZUKAZE and UMIKAZE.

1 November 1943:
Captain Hase is promoted to Rear Admiral.

4 November 1943:
Escort carrier UNYO and DesDiv 7's AKEBONO are detached for Yokosuka.

5 November 1943:
Minelayers NUWAJIMA and YURIJIMA and auxiliary minesweepers TAMA, OI MARUs conduct an advance sweep of the Bungo Suido ahead of ISE and YAMASHIRO transiting the seaway heading north.

Near the Bungo Suido. At 0505, LtCdr (later Admiral) I. J. "Pete" Galantin's USS HALIBUT (SS-232), alerted by Ultra, picks up the zigzagging task group on radar at 14 miles, base course 300 degrees, speed 19 knots.

At 0539, Galantin fires six Mark 14 bow torpedoes at JUNYO, range 1,200 yards, depth set at 10 feet. At 0540, a torpedo hits JUNYO in the stern, but the other five miss astern. HALIBUT circles hard to port. At 0543, Galantin fires two stern torpedoes at the carrier. At 0558, Galantin tries to fire another steam torpedo at JUNYO but it malfunctions and "runs hot" in the tube.

JUNYO, rudder disabled, is towed safely through the Bungo Suido. During the action, a dud torpedo hits YAMASHIRO. ISE and the other ships in the task group are undamaged. Makes port at Tokuyama Bay.

6 November 1943:
YAMASHIRO, ISE and CruDiv 18's TATSUTA arrive at Tokuyama Naval Fuel Depot. Begins refueling.

7 November 1943:
Refuelling is completed. Makes port at Kure. All naval cadets are debarked.

10 November 1943:
ISE finally begins post-conversion workup in the Inland Sea.

25 December 1943:
Captain (later Rear Admiral) Nakase Noboru (former CO of DD SHIMAKAZE) assumes command. Rear Admiral Hase is reassigned as the Commanding Officer of the 25th Special Base Force and later becomes Chief of Staff of the 2nd Southern Expeditionary Fleet at Surabaya, Java.

25 February 1944:
BatDiv 2 is reassigned directly to the Combined Fleet.

1 May 1944:
ISE and HYUGA are assigned to the Third Fleet in Rear Admiral Matsuda Chiaki's (former CO of HYUGA and YAMATO) new CarDiv 4. Captain Amagai Takahisa's (former XO of KAGA) Air Group 634 is attached to CarDiv 4.

24 May 1944:
Arrives at Kure. Two Type 22 surface search radars are installed to air defense station.

31 May 1944:
Kure. Drydocked. Forty-seven 25-mm. AA guns (12 triple-mount, 11 single-mount) are fitted bringing their total to 104. Two Type 2 IR sets are added to the bridge wings.

7 June 1944:
Undocked, then works up.

21 June 1944:
Full-scale trials in the Iyo Nada.

23 June 1944:
Arrives at Hiroshima. Air Group 634 conducts its first catapult takeoff exercises using Aichi E16A Zuiun ("Paul") reconnaissance seaplanes in Hiroshima Bay. Trials continue in the Iwakuni Bight.

10 July 1944:
Carrier JUNYO is assigned to CarDiv 4 with ISE and HYUGA.

22 to 26 July 1944:
Two Type 13 air search radars and one E27 radar detector set are installed.

10 August 1944:
Light carrier RYUHO is assigned to CarDiv 4 with ISE, HYUGA and JUNYO. Air Group 634 has 130 aircraft.

28 September 1944-10 October 1944:
Six racks of 30-tube (180) 127mm. (5-inch) AA phosphorous rocket launchers are mounted in sponsons on each beam far aft. The rockets are armed with multiple incendiary shrapnel charges and a time fuze. The launching crews must wear special protective suits and withdraw prior to each launch.

5 October 1944:
ISE is reassigned to the Combined Fleet in Vice Admiral Ozawa Jisaburo's (former CO of HARUNA) Mobile Force, Main Body: CarDiv 4 (ISE and HYUGA), CarDiv 3's ZUIKAKU, ZUIHO, CHITOSE and CHIYODA, Escort Squadron 31's light cruisers ISUZU, OYODO and TAMA, destroyers HATSUZUKI, AKITSUKI, WAKATSUKI and SHIMOTSUKI and destroyer escorts MAKI, KIRI, KUWA and SUGI.

15 October 1944:
Captain Nakase is promoted to Rear Admiral.

20 October 1944: Operation SHO-I-GO ("Victory") – The Battle of Leyte Gulf:
CarDiv 4’s ISE and HYUGA depart the Yashima anchorage towards the Philippines with Admiral Ozawa 's Northern "decoy" Mobile Force, Main Body and a Supply Force: oilers TAKANE and JINEI MARUs and kaibokan CDs 22, 29, 31, 33, 43 and 132. CarDiv 3 carries but 108 planes. CarDiv 4 carries no planes since Air Group 634 was sent to Formosa and decimated in sorties against TF 38.

At 1800, Ozawa's force departs the Inland Sea via the unguarded eastern channel of the Bungo Suido. Ozawa's radar detectors pick up an enemy submarine's radar emissions. The fleet takes evasive action eastwards. About ten aircraft are kept airborne to conduct antisubmarine patrols.

21 October 1944:
About 1200, torpedo noises are heard and the destroyers drop depth charges. Ozawa's force again turns eastwards.

22 October 1944:
HYUGA's communications-intelligence unit intercepts a possible American task force's voice transmission. The signal is also intercepted by Base Force 31 at Manila. Direction-finding measures locate the American force south of Ozawa's Main Body, heading NNW.

Ozawa's force is refueling at sea. Sound contact is made with a submarine. At 2010, ZUIKAKU and the cruiser TAMA spot torpedo tracks and make a sharp turn to port. WAKATSUKI is detached to repel the sub. Ozawa is forced to cancel the refueling after receiving only one third of the required amount.

24 October 1944:
ISE steams in a ring formation aft of ZUIKAKU and ZUIHO. Under Rear Admiral Matsuda, ISE, HYUGA and destroyers HATSUTSUKI, AKIZUKI, WAKATSUKI and SHIMOTSUKI form the Vanguard Force of the Northern Mobile Force.

1145: Ozawa has ZUIKAKU hoist Admiral Togo's 'Z' flag.

1515: Admiral Ozawa orders CarDiv 4 southward as an advance force to screen ahead of the Main Body. Matsuda's battleships are about 50 miles south of the Main Body when they are spotted by a Task Force 38 scout plane at 18-10N, 124-30E. The scout reports mistakenly that Matsuda's force includes not two, but four battleships, one with a flight deck aft, plus five to six cruisers and six destroyers on course 210 degrees, speed 15 knots.

1700: Ozawa's Main Body is also spotted by another of TF 38's scout planes and reported to the Third Fleet's commander, Admiral Halsey, 190 miles away aboard his flagship, NEW JERSEY (BB-62), heading northeastward to engage. It is too late in the day for the Americans to launch and recover a carrier strike before dark.

2230: Matsuda's Vanguard Force turns back towards Ozawa's Main Body.

25 October 1944: The Battle off Cape Engano:
0700: The Vanguard Force and the main group rejoin, assuming a ring formation. ISE steams astern of ZUIKAKU and ZUIHO.

0713: HYUGA's Type 13 air search radar picks up enemy aircraft at 105 miles out.

0739: ISE's radar picks up incoming aircraft, bearing 230, range 125 miles.

0807: HYUGA's air search radar picks up another group of enemy aircraft 56 miles out.

0820: Ozawa's force is attacked by Vice Admiral (later Admiral) Marc Mitscher's (former CO of HORNET, CV-8) Task Force 38 carrier planes from ENTERPRISE (CV-6), ESSEX (CV-9), INTREPID (CV-11), FRANKLIN (CV-13), LEXINGTON (CV-16), INDEPENDENCE (CVL-22), BELLEAU WOOD (CVL-24), LANGLEY (CVL-27), CABOT (CVL-28) and SAN JACINTO (CVL-30). TF 38 launches 527 sorties in five strikes against the Northern Force.

ISE detects the incoming U.S. planes with her radar and opens fire with her main battery's "sanshiki-dan"shells. During the first attack, ISE suffers two near misses.

1005: During the second attack, ISE's gunners claim five of the 10 attacking dive bombers. There are eight near misses, but one small bomb explodes on turret No. 2.

Throughout the action, ISE operates with OYODO, escorting carriers ZUIHO and ZUIKAKU. ISE attempts unsuccessfully to provide AA cover, but during the day's action both ZUIKAKU and ZUIHO are sunk, as are carriers CHITOSE and CHIYODA and destroyer AKIZUKI.

1228: ISE's radar picks up the next group approaching, range 95 miles on bearing 150. After this attack, the ISE takes on 98 survivors from ZUIHO.

1630: Ozawa's force is located at 20-08N, 126-28E and moving north, heading 010 at 22 knots. HYUGA and SHIMOTSUKI are steaming south of the Main Body.

1726-1729: During the fourth attack, ISE is attacked by 35 dive-bombers from port and about 50 from starboard. Seven torpedoes are launched from starboard ahead and four from the port quarter. After 34 near misses, ISE's hull plates rupture near the waterline. She takes on water that causes minor damage to her port boiler rooms. Ninety-five tons of fuel oil in the damaged tanks are contaminated by sea water. A bomb hits outboard of the port catapult and inflicts some 40 to 50 casualties. Other near misses by bombs spray her upper works with splinters. Five crewmen are killed and 71 are injured.

1742: LtCdr I. J. "Pete" Galantin's USS HALIBUT (SS-232) sights the distinctive pagoda superstructure of a Japanese battleship at 31, 000 yards through the high periscope. (HALIBUT, HADDOCK (SS-231) and TUNA (SS-203) are part of a scouting line put in place by ComSubPac to intercept crippled IJN warships escaping from the day's battles.) HALIBUT's radar also tracks destroyers SHIMOTSUKI and WAKATSUKI.

1830: HYUGA and SHIMOTSUKI rejoin the Main Body.

1843: Galantin fires six bow Mark-18 electric torpedoes at an ISE-class battleship, but they all miss.

1900: Admiral Ozawa transfers to light cruiser OYODO just before ZUIKAKU sinks. He learns that an American cruiser force is attacking ISUZU and the destroyers he left behind to assist CHIYODA. Ozawa orders Matsuda's CarDiv 4, OYODO and their destroyers to engage the Americans. All reverse course southward and set off at 16 knots.

2300: The CarDiv 4 group is again picked up by HALIBUT and tracked but LtCdr Galantin is unable to gain position for another attack.

2330: The CarDiv 4 group is unable to make contact with American cruiser force. Ozawa orders the CarDiv 4 group to reverse course northward and make port at Amami-O-Shima.

The CarDiv 4 group is located and tracked by LtCdr (later Vice Admiral) Frederick J. Harlfinger in TRIGGER (SS-237), but he is unable to attack.

HADDOCK sights HYUGA and ISE and pursues them all night, but is unable to get within torpedo range.

26 October 1944:
At 0610, HYUGA's lookouts spot torpedo tracks, but they miss. A submarine alert is put into effect.

0630: 90 miles SE of Miyako Island. Ozawa's force turns NW towards Amami-O-Shima.

1734: East China Sea. HYUGA's lookouts spot two approaching torpedoes on bearing 135 port. ISE reports sighting a submarine on bearing 160.

2032: ISE is attacked by another submarine. Three torpedoes pass between ISE and HYUGA.

27 October 1944:
At 1200, CarDiv 4 arrives arrives safely at Sakawa Bay, Amami-O-Shima. Ozawa transfers the Combined Fleet's flag to HYUGA from OYODO. OYODO detaches.

28 October 1944:
The CarDiv 4 group refuels from oilers at Amami-O-Shima. CarDiv 4 and the destroyers depart for the Inland Sea. At 2120, LtCdr (later Vice Admiral) Vernon L. Lowrance in USS SEA DOG (SS-401) attacks the CarDiv 4 group. He misses with six Mark-18 electric torpedoes.

29 October 1944:
CarDiv 4 and the destroyers depart Amami-Oshima for the Inland Sea. At 0415, the group is picked up at 24,000 yards and tracked on radar by LtCdr O. C. Robbins' USS STERLET (SS-392). Robbins closes to 12,000 yards but CarDiv 4, making 22 knots, outruns his submarine.

The CarDiv 4 group is picked up by radar then visually sighted by Cdr Thomas L. Wogan's BESUGO (SS-321) and LtCdr Henry S. Monroe's RONQUIL (SS-396), but neither submarine is able to close for an attack. CarDiv 4 arrives safely at Kure.

29 October-8 November 1944:
Two catapults aft are removed to improve the firing arcs of turrets No. 3 and No. 4.

8 November 1944:
Departs Kure.

9 November 1944:
Rendezvouses with HYUGA off Goto Retto archipelago.

11 November 1944:
CarDiv 4 departs for Manila with DesDiv 43's KIRI, UME and DesDiv 61's SHIMOTSUKI. CarDiv 4's battleships carrry elements of the 127th Airfield Battalion and each carries about 1,000 metric tons of munitions, mostly in hangars, for IJA air and ground units defending the Manila area. The munitions include land mines, rockets and aircraft drop tanks.

When nearing the Philippines, reports of heavy air raids on Manila cause CarDiv 4 to divert to the Spratly Islands.

15 November 1944:
The Mobile Fleet is disbanded. ISE and HYUGA are reassigned to CarDiv 4, Second Fleet. The carriers JUNYO and RYUHO are reassigned to CarDiv 1, Combined Fleet.

14 November 1944:
CarDiv 4 arrives at the Spratlys. Troops, munitions and supplies are unloaded for transshipment to the Philippines. DesDiv 43 detaches and joins the escort of Vice Admiral Kurita's battleship group: YAMATO, KONGO and NAGATO that is enroute from Brunei to Kure.

18-19 November 1944:
Spratlys. Battleship HARUNA, cruisers ASHIGARA and HAGURO and light cruiser OYODO arrive from Brunei. Vice Admiral Shima Kiyohide (former CO of OI), Commander of the Fifth Fleet, arrives from Manila aboard DesDiv 21's HATSUSHIMO accompanied by DesDiv 2's ASASHIMO and DesDiv 7's KASUMI and USHIO. Shima transfers his Fifth Fleet flag to cruiser ASHIGARA.

20 November 1944:
CarDiv 4 departs the Spratlys with HARUNA, ASHIGARA, HAGURO and OYODO and destroyers.

22 November 1944:
Arrives at Lingga (near Singapore).

22 November-10 December 1944:
CarDiv 4's ISE and HYUGA at Lingga.

12 December 1944:
CarDiv 4, ASHIGARA and OYODO depart Lingga.

14 December 1944:
Arrives at Camranh Bay, Indochina. Assumes 'standby alert' to intercept an American supply convoy heading for Mindanao. USS BASHAW (SS-241) and USS GUAVINA (SS-362) sight CarDiv 4 at Camranh, but neither submarine is able to attack. Vice Admiral Shima transfers his Fifth Fleet flag from ASHIGARA to HYUGA. ASHIGARA is detached.

17 December 1944:
USS MINGO (SS-261) sights CarDiv 4 at Camranh but the submarine, in typhoon conditions, is unable to attack.

18 December 1944:
Departs Camranh, arrives at Cap St. Jacques that day.

28 December 1944:
Cap St. Jacques. CarDiv 4 is rejoined by ASHIGARA and OYODO that arrive after participating with Rear Admiral (later Vice Admiral) Kimura Masatomi's (former CO of SUZUYA) Operation "REI-GO" force in the bombardment of the American beachhead at San Jose on Mindoro Island, Philippines.

Ulithi Anchorage. Fleet Admiral Chester W. Nimitz (former CO of AUGUSTA, CA-33), CINCPAC, visits Admiral Halsey, Commander, Third Fleet, aboard flagship battleship USS NEW JERSEY (BB-62). Halsey asks Nimitz's permission to take Task Force 38 into the South China Sea to pursue HYUGA and ISE. Nimitz consents, but orders Halsey not to move west of the Philippines until Task Force 38's fast carriers finish supporting General MacArthur and the Seventh Fleet's landings at Lingayen Gulf scheduled for 9 January 1945.

30 December 1944: The 'standby alert' is canceled. CarDiv 4, ASHIGARA, OYODO, DesDiv 2's ASASHIMO and DesDiv 18's KASUMI depart Camranh via Cap St Jacques. Enroute south, they pass escort carrier KAIYO accompanying convoy HI-84 from Singapore to Japan.

1 January 1945:
The CarDiv 4 group arrives at Singapore. Vice Admiral Shima transfers his flag from HYUGA to OYODO. ASHIGARA and OYODO are detached for repairs at the Seletar Naval Base at Singapore. CarDiv 4 continues on to Lingga. Assumes 'standby alert' at Lingga.

CarDiv 4 is reassigned to the Southwest Expeditionary Fleet.

5 January 1945:
Johore Strait, off Singapore. ISE grazes a reef.

12 January 1945: American Operation "Gratitude":
Halsey stands off Camranh Bay with the Third Fleet. Vice Admiral John S. McCain launches almost 1,500 sorties looking for the Japanese fleet. Task Force 38 bombs Indochina, Hong Kong and Southern Formosa and sinks 44 ships. TF 38 never locates HYUGA and ISE at their Lingga anchorage but their departure for Japan is delayed by McCain's presence. TF 38's aircraft sink two tankers (probably SAN LUIS and SHOEI MARUs) that were to have refueled CarDiv 4 off Saigon.

6 February 1945:
CarDiv 4, OYODO and KASUMI and DesDiv 21's ASASHIMO and HATSUSHIMO depart Lingga for Singapore. Approaching Singapore, ISE is damaged slightly by a magnetic mine explosion nearby.

6-9 February 1945: Operation Kita ("North"):
Singapore. Temporary repairs are carried out. ISE and HYUGA are each loaded with 5,000 drums of aviation gasoline, 100 kiloliters of aviation gasoline in ship storage tanks, 330 drums of ordinary gasoline, 520 tons of rubber, 820 tons of tin, 50 tons of tungsten and 30 tons of mercury. OYODO takes on 300 tons of rubber, zinc, mercury, tin and gasoline. Their destroyers take on 140 tons of rubber and tin. The ships also embark 1,150 oil field technical personnel.

10 February 1945:
OYODO is attached to CarDiv 4. At 2100, the "Completion Force" (KAN-Butai) comprised of ISE, HYUGA, OYODO and destroyers KASUMI, ASASHIMO and HATSUSHIMO sorties from Singapore.

11 February 1945:
Lt (later Vice Admiral Sir) Hugh "Rufus" MacKenzie's submarine HMS TANTALUS sights the "Force". TANTALUS tries an "end-around" but is bombed by an air escort and forced to go deep, unable to attack.

13 February 1945:
1213: South China Sea. LtCdr John M. Hyde's USS BERGALL (SS-320) picks up the Force in poor weather conditions off Hainan Island at 15-34N, 110-50E. Hyde, submerged on the track, cannot get closer than 4,800 yards. He fires six torpedoes at a battleship, but they all miss. BERGALL is counter-attacked by the escorts with new, larger explosive depth-charges but escapes.

1340: LtCdr James H. Campbell's USS BLOWER (SS-325) fires five torpedoes at a battleship and one at OYODO, but they all miss. One of the torpedoes is exploded by fire from one of ISE's AA-guns.

1530: The Force comes out of a rainsquall. One of its ships launches a floatplane.

1618: Lookouts aboard HYUGA sight LtCdr H. S. Simpson's USS BASHAW (SS-241) on the surface, 22 km port side ahead. HYUGA opens fire with her 14-inch main armament. One 14-inch shell comes within a mile starboard astern of BASHAW. Simpson crash-dives and breaks off his attack.

15 February 1945:
At 1900, the Force anchors at Matsu Island Anchorage (26-09N, 119-56E), Fukien Province, China.

16 February 1945:
Formosa Strait. At 0000, the Force departs Matsu Island Anchorage for Kure via the Korean coast and the Shimonoseki Strait. Destroyers NOKAZE and KAMIKAZE join the escort briefly, then are detached southbound.

LtCdr (later Captain) Benjamin E. Adams, Jr's USS RASHER (SS-269) is alerted by Ultra to the movement of the Force. At 0507, RASHER makes radar contact south of Wenchow, China at 26-55N, 122-03E. RASHER picks up three escorts, range nine miles, heading 030 at 18 knots. In a driving rain, Adams targets the second ship. At 1,800 yards, he fires six Mark-18 electric torpedoes, but the Force changes course. All six torpedoes miss.

At 2106, the Force anchors N of Chusan (Zhoushan) Island, SE of Shanghai.

18 February 1945:
At 0700, the Force departs Chusan Island.

18 February 1945:
At 1600, the Force anchors off E side of Shozen-To (Ch´angson-do) island an SE of Sanzenpo Harbor, S Korea. (34-51N, 128-01E).

19 February 1945:
At 0700, the Force departs Shozen-To. At 1600, anchors of Mutsure-Jima. In all, the Force escapes pursuit by 23 U.S. and Allied submarines.

20 February 1945:
At 1000, arrives at Kure.

25 February 1945:
Captain Mutaguchi Kakuro (former CO of OYODO) assumes command. Rear Admiral Nakase is reassigned to head the Naval General Staff's Third Bureau (Intelligence).

25 February-September 1945:
Kure. No fuel, aircraft or flight crews are available. During this period, ISE is camouflaged olive green with dark green, yellow, gray and red-brown splotches.

1 March 1945:
CarDiv 4 is disbanded. ISE is reassigned to Kure as Reserve Ship, 1st rank.

19 March 1945:
Vice Admiral (later Admiral) Marc A. Mitscher's Task Force 58 carriers USS ESSEX (CV-9), INTREPID (CV-11), HORNET (CV-12), WASP (CV-18), HANCOCK (CV-19), BENNINGTON (CV-20) and BELLEAU WOOD (CVL-24) make the first carrier attack on the Kure Naval Arsenal. More than 240 aircraft (SB2C "Helldivers", F4U "Corsairs" and F6F "Hellcats") attack battleships ISE, HYUGA, YAMATO and HARUNA, carriers AMAGI, KATSURAGI, light carrier RYUHO, escort carrier KAIYO and other ships. ISE is hit by two bombs, one of which hits near the aircraft elevator abaft the mainmast.

The fleet is defended vigorously but unsuccessfully by 54 Kawanishi N1K2-J Shiden-Kai ("George") fighters of Captain (later General and CINC, JSDF) Genda Minoru's (of AKAGI at Pearl Harbor) 343rd NAG based at Matsuyama airfield. The 343rd's pilots led by Lt. Oshibuchi Takashi claim 52 aircraft shot down against 14 fighters and one Nakajima C6N1 Saiun ("Myrt") lost. Japanese flak claims five more planes. [1]

20 April 1945:
Kure. ISE is registered as a Reserve Ship, 4th (lowest) rank.

20-30 April 1945:
ISE is transferred to Ondo Seto, between Kurahashijima and Kure where she functions as a floating AA battery.

1 June 1945:
Ondo Seto. ISE, HYUGA, NAGATO and HARUNA are assigned to the Special (Coast) Guard Fleet.

24 July 1945: The Final Destruction of the Imperial Japanese Navy:
Ondo Seto. At 0615 about 30 aircraft from Vice Admiral (later Admiral) John S. McCain's (former CO of RANGER, CV-4) Task Force 38 attack ISE. Bombs hit the starboard bow flight deck, main deck and No. 3 turret. About noon, 30 more carrier-based aircraft attack and score a direct hit on the bridge. Captain Mutaguchi and other bridge personnel are killed. AA gunnery officer LtCdr Morooka Isamu is appointed as acting CO. Mutaguchi is promoted to Rear Admiral posthumously.

During the day's attacks, ISE suffers five direct hits and numerous near-misses. About 50 crewmen are killed and many others wounded. ISE settles by the bow and takes on water. Work begins to pump out her spaces.

27 July 1945:
After three days of pumping ISE is restored to an even keel. It is planned to tow ISE to drydock.

28 July 1945:
Ondo Seto. ISE is attacked by aircraft from Task Force 38's USS TICONDEROGA (CV-14), LEXINGTON (CV-16), HANCOCK (CV-17) and BENNINGTON (CV-20). ISE is hit by five 1,000-lb bombs dropped by F4U's from HANCOCK's Air Group 6. During the day, ISE suffers 11 or more direct hits and many more near misses from other carrier-based aircraft. At 1400, 18 USAAF B-24 "Liberators" from Okinawa also bomb ISE, but they score no hits.

ISE founders with a 15 degree list to starboard and sinks by the bow in shallow water at 34-15N, 132-31E. At 1800, all attempts to salvage ISE are abandoned. Some of her AA guns are removed and added to nearby AA batteries.

20 November 1945:
Removed from the Navy List.

26 November 1945:
The wreck of ISE is inspected by members of NavTech Mission.

9 October 1946 - 4 July 1947:
ISE's underwater hulk section is left where it was and she is scrapped without being raised by the Kure Dockyard of the Harima Zosen Yard.

Authors' Notes:
[1] Japan Self Defense Force.

Special thanks for assistance in researching Japanese sources used in this TROM go to Dr. Higuchi Tatsuhiro and Mr. Yutaka Iwasaki of Japan and Mr. Anthony Tully of the United States. Mr. Jean-François Masson of Canada provided excellent help on some of the IJN officers mentioned.

Thanks go to reader Mr. Takashi Hirota concerning ISE's "sniping" actions on 13 February 1945. Thanks also go to Mr. Aldert Gritter of the Netherlands, Erich Muehlthaler of Germany and John Whitman of the USA.

- Bob Hackett, Sander Kingsepp and Lars Ahlberg .

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