© 2007-2018 Bob Hackett, Sander Kingsepp and Peter Cundall
20 October 1943:
Nagasaki. CD-10 is laid down at Mitsubishi Heavy Industries’ shipyard.
11 January 1944:
Launched and numbered CD-10.
30 January 1944:
Reserve Lt (later LtCdr) Ichinose Shiro (former CO of CH-7) is appointed Chief Equipping Officer of CD-10 and CD-22 as an additional duty.
29 February 1944:
Completed and registered in the IJN. Attached to Sasebo Naval District. Assigned to Sasebo Guard Force. Reserve Lt Ichinose Shiro is the CO. 
25 March 1944:
Assigned to the General Escort Command's First Surface Escort Division.
27 March 1944:
At 0700 CD-8, CD-9 and CD-10 depart Saeki. At 1400 CD-8 and CD-9 arrive at Moji (CD-10 goes to Kure).
28 March 1944:
At 1500 CD-10 arrives at Kure. Docked for repairs.
8 April 1944:
At 0800 departs Kure and at 1820 arrives at Moji.
9 ~ 13 April 1944:
Steering gear is being repaired.
20 April 1944:
At 0600, CD-10 departs Moji-Mutsure for Singapore with kaibokan KURAHASHI, CD-11 and CD-20 escorting convoy HI-59 consisting of tankers OKIKAWA, NIPPPO, EIHO, OTORISAN, MANEI, TENEI and NIYO MARUs, NICHINAN MARU No.2 and transports MANKO, TEIHOKU (ex-French PERSEE) and AOBASAN MARUs.
26 April 1944:
NIYO MARU suffers an engine breakdown and is towed by MANKO MARU to Woosung (near Shanghai) with CD-11 as escort.
28 April 1944:
At 1410 HI-59 arrives at Takao.
29 April 1944:
At 0920 HI-59 departs Takao.
2 May 1944:
At 1200, HI-59 arrives at Manila and is dissolved.
5 May 1944:
At 1800 CD-10 and CD-11 depart Manila escorting Rinji Convoy consisting of tankers OKIKAWA, NIPPO, EIHO and MANEI MARUs.
7 May 1944:
CD-11 separates from the convoy.
10 May 1944:
At 0700 arrives at Balikpapan.
11 May 1944:
At 0200 CD-10 departs Balikpapan alone.
12 May 1944:
At 1630 arrives at Tarakan.
14 May 1944:
The commander of the Combined Fleet takes over command.
16 May 1944:
At 1210 departs Tarakan with Combined Fleet task force.
18 May 1944:
At 2000 arrives at Manila.
12 June 1944:
At 0800, CD-10 departs Manila for Wasili harbor, Halmahera Island with submarine chaser CH-45 and patrol boats PB-103 and PB-105 escorting convoy H-29, consisting of MACASSAR, JUNPO, YAMAGIKU, FRANCE, KURAMASAN, HIBI and TAIYU MARUs.
17 June 1944:
HIBI MARU is detached for Zamboanga, Mindanao.
23 June 1944:
At 1710, convoy H-29 arrives at Halmahera Island.
25 June 1944:
At 0550, CD-10 departs Wasili harbor, Halmahera Island for Manila with patrol boats PB-103 and PB-105 escorting convoy M-25 consisting of MACASSAR, JUNPO, YAMAGIKU, FRANCE and TAIYU MARUs.
28 June 1944:
Moro Gulf, 35 miles east of Zamboanga, Philippines. At 0712, LtCdr Ian C. Eddy's (USNA '30) USS PARGO (SS-264) attacks the convoy. Eddy torpedoes and sinks YAMAGIKU MARU, with the loss of three crewmen, and damages CD-10 at 06-50N, 121-30E.
29 June 1944:
At 1550, the convoy departs Zamboanga with KASAGISAN MARU as an additional member.
1 July 1944:
Cebu Sea. FRANCE and TAIYU MARUs are detached.
3 July 1944:
The remainder of convoy M-25 arrives at Manila.
5 July 1944:
The commander of the Combined Fleet returns command.
16 July 1944:
Departs Manila with subchaser CH-48, auxiliary netlayer KISHIN MARU and auxiliary subchaser SHONAN MARU No. 8 escorting convoy MATA-25 consisting of auxiliary transports HAKOZAKI MARU and NISSHO MARU No. 18, IJA transport SHINFUKU MARU and civilian cargo ship (C-AK) SEIGA MARUs, IJA water tanker SHINSUI MARU and two unidentified merchant ships.
18 July 1944:
Arrives at San Fernando.
21 July 1944:
CD-10 joins convoy YUTA-09 near North San Fernando, Luzon. The convoy by this time consists of TATSUWA, PACIFIC, MACASSAR, MURORAN and JUNPO MARUs and two unidentified merchant ships escorted by destroyer KURETAKE and auxiliary gunboats HUASHAN (KAZAN) and PEKING MARUs. After leaving port at 2255 in position 17-31N 120-22E PEKING MARU runs aground and is left behind. At some unknown date because of submarine fears the convoy is ordered to return to North San Fernando.
22 July 1944:
Destroyer HARUKAZE arrives to assist with salvage works.
23 July 1944:
Auxiliary gunboat CHOJUSAN MARU, kaibokan CD-26 and auxiliary tug KEISHU MARU (ex British HENRY KESWICK) rrive to assist with salvage works.
24 July 1944:
At North San Fernando HAKOZAKI MARU is coaled from TATSUWA MARU.
26 July 1944:
Together with MATA-25 convoy the ships departs North San Fernando. MATA-25 consists of HAKOZAKI, SEIGA, SHINFUKU MARUs, NISSHO MARU No. 18 and two unidentified merchant ships and is escorted by subchaser CH-48, auxiliary netlayer KISHIN MARU, auxiliary subchaser SHONAN MARU No. 8 and one unidentified warship.
27 July 1944:
CD-10 and CHOJUSAN MARU end their assitance and depart.
28 July 1944:
At 1545 arrives at Takao.
31 July 1944:
CD-10, destroyer SHIOKAZE, minelayer YURIJIMA and sub-chaser CH-48 depart Takao in convoy TAMO-22, consisting of TATSUWA MARU and six unidentified merchant ships.
1 August 1944:
At 1300 arrives at Kirun.
4 August 1944:
At 1200 departs Kirun.
8 August 1944:
At 1030 CD-10 arrives at Sasebo, after being detached. Enters drydock for repairs. Later that day the convoy arrives at Moji.
14 August 1944:
15 August 1944:
At 0600, CD-10 departs Moji for Takao with destroyer HATSUSHIMO, kaibokan CD-20, torpedo boat HIYODORI, minesweeper W-20 and subchaser CH-63 escorting convoy MOTA-23, consisting of FUKUREI, EDOGAWA, TAIJO, EIJI, MANSHU, ATSUTA, CHINA, ROZAN, EIMAN, TOYOOKA, KOGYO, AWAJI MARUs, YOSHIDA MARU No. 3, TOYO MARU No. 3 and an unidentified ship.
16 August 1944:
At 1230 an enemy submarine is detected. CD-10 drops depth charges. At 1237 conducts an anti-submarine sweep with W-20 and CH-63.
17 August 1944:
Follows the convoy with CH-63 and W-20 meanwhile continuing anti-submarine operations. At 2000 they catch up with the convoy and end anti-submarine sweeping.
18 August 1944:
At 1900 arrives at Kagoshima.
20 August 1944:
At 0200 departs Kagoshima.
24 August 1944:
At about 0700, off the coast of Sancho Point, Formosa (now Cape Sandiajiao, Taiwan), LtCdr Henry S. Monroe's (USNA '33) USS RONQUIL (SS-396) torpedoes and sinks YOSHIDA MARU No. 3 with 70 crewmen, 10 gunners and 96 of 99 soldiers KIA. At about the same time, Monroe torpedoes and damages FUKUREI MARU. At 1034, carries out an anti submarine sweep and rescues survivors. FUKUREI MARU floods and drifts ashore where she is abandoned about three months later.
25 August 1944:
At 1400, the convoy arrives at Kirun (Keelung).
27 August 1944:
At 0900 the convoy departs Kirun.
28 August 1944:
The convoy arrives at Saei, Formosa (now Tsoying harbour, Taiwan).
29 August 1944:
The convoy departs Saei and it arrives at Takao later that day.
30 August 1944:
At 1500, CD-10 departs Takao for Manila with minelayer SHIRATAKA, minesweeper W-21, and kaibokan CD-20 escorting reorganized convoy MI-15 that now consists of RIKKO, TAISHO, OKUNI (TAIKOKU), EIKYU, auxiliary storeship SHINYO, NANSEI, HOSEN and CHIYODA MARUs with UNKAI MARU No. 5, OKINOYAMA MARU No. 5 and KYOEI MARU No. 10.
31 August 1944:
Luzon Strait, S of Formosa. At about 0220, LtCdr (later Rear Admiral) Charles E. Loughlin's (USNA '33) USS QUEENFISH (SS-393) hits CHIYODA MARU with four torpedoes and sets her afire. At 0240, as the moon
sets, CHIYODA MARU sinks. She was carrying 430 passengers, coal briquettes and drummed gasoline. 15 crewmen and 382 soldiers are KIA. Loughlin also damages oiler RIKKO MARU steaming in ballast.
LtCdr (later Vice Admiral) Eli T. Reich's (USNA '35) USS SEALION (SS-315), a member of "Ben's Busters" with USS GROWLER (SS-215) and USS PAMPANITO, enters the Bashi Strait. USS SEALION's SJ radar picks up the convoy and Reich makes a night surface approach. He sets up and fires six torpedoes,
but they all run erratically. About 0500, Reich swings USS SEALION and fires his four stern torpedoes at a large tanker. He claims two hits.
Alerted by code-breaker's "Ultra" signals, LtCdr (later Rear Admiral) Eugene B. Fluckey's (USNA '35) USS BARB (SS-220) intercepts the convoy. At about 0700, Fluckey torpedoes OKUNI MARU. She sinks stern first taking down three of her crew. Fluckey also sinks the 45th Minesweeper Squadron's HINODE MARU No. 20 that was patrolling the area. Two crewmen are KIA.
USS SEALION evades the convoy's escorts. Still surfaced, LtCdr Reich makes an "end-around" approach to work his way ahead of the convoy. At 0715 (JST), SHIRATAKA's lookouts spot a submarine on the surface at 21-05N, 121-26E. Reich misidentifies SHIRATAKA as a destroyer. He begins a submerged approach. At 0730, Reich hits SHIRATAKA with two of three torpedoes. At 1115, SHIRATAKA sinks at 20-55N, 121-07E. Captain (Rear Admiral, posthumously) Miki Takahide (46) is KIA.
1 September 1944:
CD-10 arrives at Tungchiang, southern Formosa.
2 September 1944:
At 2200 CD-10 departs Tungchiang and engages in a submarine hunt, before rejoining the convoy.
5 September 1944:
At 1900 arrives at San Fernando.
6 September 1944:
Departs San Fernando.
7 September 1944:
At 1000, the convoy arrives at Manila.
10 September 1944:
CD-10 departs Manila for Moji with CD-20 and minesweeper W-21 escorting fleet convoy MAMO-03, consisting of GOKOKU, KAGU and KIBITSU MARUs.
11 September 1944:
S China Sea. 100 miles NE of the Paracel Islands. Convoy MAMO-03 joins fleet convoy HI-72 that departed Singapore on 6 September for Moji. HI-72 includes ASAKA, NANKAI, KIMIKAWA, RAKUYO, ZUIHO, KIBITSU and KACHIDOKI MARUs (ex-PRESIDENT HARRISON). HI-72 carries oil, drummed aviation gasoline, bauxite, mercury and rubber. RAKUYO MARU also carries 1,317 Allied POWs and KACHIDOKI MARU carries another 950 POWs. Destroyer SHIKINAMI and kaibokan HIRADO, MIKURA and KURAHASHI are in the escort.
12 September 1944:
At 0200, HIRADO is torpedoed by Cdr Thomas B. Oakey's (USNA '34) USS GROWLER (SS-215). The kaibokan blows up and sinks. Rear Admiral Kajioka Sadamichi (39) (former CO of KISO), victor of Wake Island, now CO of the 6th Escort Convoy Command is killed. He is promoted Vice Admiral, posthumously.
At 0500, RAKUYO MARU is torpedoed by LtCdr (later Vice Admiral) Eli T. Reich's (USNA '35) USS SEALION and hit in the No. 1 hold and engine room. RAKUYO MARU is carrying 1,318 POWs (601 British, 716 Australian and several US POWs), of whom 1,051 and nine crewmen are KIA. About the same time, USS SEALION also torpedoes NANKAI MARU, carrying 525 passengers, 6,500-tons of bauxite, 4,000 drums of gasoline, 170-tons of oil, 77 mail packages and ashes of 18 war dead. She is hit in Hold Nos. 3 and 6 and sinks about 0800. 196 passengers and 3 crewmen are KIA.
240 miles south of Hong Kong. Just before 0700, SHIKINAMI is torpedoed by USS GROWLER and sinks at 18-16 N, 114-40 E. Eight officers and 120 men rescued by MIKURA. At 2300, KACHIDOKI MARU carrying 487 IJA troops, 608 patients, gunners, ashes of 582 dead, 950 POWs and a cargo of 6,000-tons of bauxite, is hit by USS PAMPANITO (SS-383) and sinks. 431 POWs perish as well as 45 other passengers and 12 crewmen. USS PAMPANITO also sinks ZUIHO MARU loaded with 8,000-tons of oil products, with no casualties. The Japanese rescue a few POWs from the two prison ships. The survivors are transferred to KIBITSU MARU and taken to Japan.
CD-10 arrives at Manila. Departs later on a rescue mission of convoy HI-72 victims.
15 September 1944:
At 1030 the remainder of the convoy arrives at Yulin, Hainan Island.
16 September 1944:
At 2000 CD-10 departs Yulin for Moji with kaibokan MIKURA, ETOROFU, CD-18 and CD-26 escorting the first echelon of reorganized convoy HI-72, consisting of ASAMA, KIBITSU MARU, GOKOKU and KAGU MARUs.
20 September 1944:
Off Formosa. At 0110, USAAF B-24 "Liberator" heavy bombers attack the convoy's first (Moji-bound) echelon at 23-20N, 119-12E. GOKOKU MARU is damaged by a direct hit and ASAMA MARU suffers a near miss aft. Both are towed into nearby Mako for repairs. KAGU MARU suffers hull damage by near-misses. Kaibokan MIKURA is damaged and towed to Mako by CD-18. The bombers also damage cargo vessels ASAKA and SHINCHO MARUs. KAGU MARU heads for Kirun (Takao in some sources) for repairs escorted by CD-10, CD-11 and CD-20.
21 September 1944:
At 1915 CD-10 arrives at Kirun. CD-11 follows at 2400.
23 September 1944:
At 1200 CD-10, CD-20 and CD-11 depart Kirun to meet incoming elements of HI-72 convoy.
24 September 1944:
At 1045 they meet up with KIBITSU MARU and arrive at Kirun at 1320.
25 September 1944:
At 1300, CD-10 departs Kirun for Moji with kaibokan CD-11 and CD-20 escorting KIBITSU and KAGU MARUs.
27 September 1944:
East China Sea, 100 miles NNW of Amami-O-Shima. LtCdr Clyde B. Stevens Jr's (USNA '30) USS PLAICE (SS-390) torpedoes and sinks CD-10 at 29-26N, 128-50E. CD-11 rescues eight crewmen, but 148 of CD-10's crewmen are lost.
11 October 1944:
Removed from the Navy List.
 From 29 February to 10 March 1944 Reserve Lt Ichinose simultaneously acted as the CEO of CD-22.
Thanks to Mr. Gilbert Casse of France and Berend van der Wal of Netherlands.
-Bob Hackett, Sander Kingsepp and Peter Cundall.