Stories and Battle Histories of the IJN's Cruiser Force

(Updated 1 October 2016)

By Bob Hackett and Sander Kingsepp

Discussion & Questions

(MOGAMI in 1935 - colorized by Irotooko, Jr)

The Tabular Records of Movement (TROMs) presented on these pages for the Imperial Japanese Navy's "Junyokan" - cruisers - have been prepared by Bob Hackett and Sander Kingsepp from Japanese and American source materials. Japanese cruisers ranged throughout the Pacific in World War II and were in the forefront of virtually all the major engagements against Allied Forces.

As these TROMs disclose, only a few Junyokan meet their doom in the surface engagements for which they were designed; most were destroyed by bombs and torpedoes delivered by aircraft or had their hulls ripped open to the seas by submarine-launched torpedoes.

As usual, every effort has been made to provide the latest verified information on the movements, engagements and ultimate fates of these major combatants. Feel free to post any questions to us on the Discussion and Questions board links.

Tabular Records of Movement (TROMs)

ITTO-JUNYOKAN - Heavy Cruisers

(Class types link to specification summaries)

Furutaka Class

Furutaka (revised 4/1/2016)
Kako (revised 4/1/2016)
Aoba (revised 4/1/2016)
Kinugasa (revised 4/1/2016

Myoko Class

Myoko (revised 7/1/2016)
Ashigara (revised 10/1/2016)
Nachi (revised 6/1/2016)
Haguro (revised 6/1/2016)

Takao Class

Takao (revised 6/1/2016)
Maya (revised 6/1/2016)
Chokai (revised 5/1/2016)
Atago (revised 6/1/2016)


Mogami (revised 9/1/2016)
Mikuma (revised 9/1/2016)
Suzuya (revised 5/4/2016)
Kumano (revised 9/1/2016)

Tone Class

Tone (revised 5/4/2016)
Chikuma (revised 5/4/2016)


KEI-JUNYOKAN - Light Cruisers

Agano Class

Agano (revised

Yahagi (revised 7/1/2016)
Noshiro (revised 7/1/2016)
Sakawa (revised 7/1/2016)

Oyodo Class

Oyodo (revised 7/1/2016)

Nagara Class

Nagara (revised 8/1/2016)
Isuzu (revised 8/1/2016)
Yura (revised 5/4/2016)
Natori(revised 8/1/2016)
Kinu (revised 1/1/2016)
Abukuma(revised 8/1/2016))

Kuma Class

Kuma (revised 10/1/2016)
Tama (revised 9/1/2016)
Kitakami (revised 9/1/2016)
Oi (revised 9/1/2016)
Kiso (revised 12/12/2009)

Naka Class

Naka (revised 10/1/2016)
Sendai (revised 1/1/2016)
Jintsu (revised 1/1/2014)

Tenryu Class

Tenryu (revised 10/1/2016)
Tatsuta (revised 3/23/2010)

Yubari Class

Yubari (revised 10/1/2016)

Katori Class

Katori (revised 11/28/2007)
Kashima (revised 7/1/2014)
Kashii (revised 2/1/2016)


SOKO-JUNYOKAN - Ex-Armored Cruisers

Izumo Class

Izumo (revised 2/1/2014)
Iwate (revised 5/5/2012)

Asama Class

Asama (posted 12/1/2015)
Tokiwa (revised 12/24/2011)

Yakumo Class

Yakumo (revised 5/5/2012)

Bibliography of Sources

Special Features 

About the Authors

Bob Hackett is a military historian and researcher. Retired from the United States Air Force and later from the aerospace industry, he resides in the United States.

Sander Kingsepp is also a military historian and researcher. A journalist, he resides in Estonia. A talented linguist, his translations of Japanese source materials have added immeasurably in the research of these works.

Bob and Sander prepared the TROMs on the IJN's cruisers presented on this JUNYOKAN! page and those on the IJN's battleships and submarines presented on the SENKAN!, SENSUIKAN! and with Australian researcher Peter Cundall, on the IJN's auxiliaries presented on our TOKUSETSU KANSEN! page.

Please post any questions you may have on the Discussion and Questions board below:

Discussion & Questions

Related Partner Sites: Combined Fleet Message Board | J-Air Forum | 3-D IJN Warships | WW2 Database | IJN Doctrine