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Japanese occupation of the Andaman and Nicobar Islands

1942–45 period during World War II

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  • 4 chapters

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Through World War II, Andaman and Nicobar Islands and India

The only military objective on the islands was the city of Port Blair. The garrison consisted of a 300-man Sikh militia with 23 British officers, augmented in January 1942 by a Gurkha detachment of 4/12th Frontier Force Regiment of the 16th Indian Infantry Brigade. Following the fall of Rangoon on March 8, however, the British recognized that Port Blair had become impossible to defend, and on March 10 the Gurkhas were withdrawn to the Arakan peninsula.

Invasion force

The Japanese, seeking to secure their seaward flank, dispatched a force to seize the islands. The force was composed of the following units and ships:

Distant Cover

  • Cruiser (flagship) Chokai
Carrier Division 4
  • Carrier Ryūjō (although listed, she did not conduct air operations)
Cruiser Division 7 – Heavy cruisers
  • Kumano
  • Suzuya
  • Mikuma
  • Mogami
Destroyer Division 11
  • Fubuki
  • Hatsuyuki
  • Shirayuki
  • Murakami

Close Cover

Destroyer Squadron 3
  • Light cruiser Sendai
Destroyer Division 19
  • Isonami
  • Uranami
  • Ayanami
Destroyer Division 20
  • Amagiri
  • Asagiri
  • Yugiri
  • Shirakumo

Invasion Force

  • Light cruiser Yura – escort unit
  • 9 Transports
  • 1 Battalion from 18th Infantry Division
  • 9th Base Force
  • Training cruiser Kashii
  • Escort ship Shimushu
  • Minelayer Hatsutaka
  • Converted gunboat Eiko Maru

Minesweeper Division 1

  • Minesweepers W1, W3, W4

Special Minesweeper Division 91

  • Minesweepers: Choko Maru, Shonan Maru No. 7, Shonan Maru #5

Air Unit

  • Seaplane tender Sagara Maru (operated east of the Nicobars)

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