The Japanese occupation of the Andaman Islands occurred in 1942 during World War II. 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on March 8, the British realize that Port Blair had become impossible to defend, and on March 10 the Gurkhas were withdrawn to the Arakan peninsula. 

Port Blair was occupied by Japanese on the 23rd March 1942. The garrison offered no resistance to the landings, and were disarmed and interned; many of the Sikh militia later enlisted in the Indian National Army. The British militia officers were sent to Singapore as POWs, whilst Chief Commissioner Waterfall, Deputy Commissioner Major A.G. Bird and the other British administrative officers were imprisoned. 

When Japanese three divisions cross Chindwin river and attack Imphal and Kohima ( operation U-Go), the first engagement in Indian soil with the Japanese tidal wave was encountered by 152 Para Battalion ,C company under Major J Fuller at Point 7378, Ukhrul, Manipur on 19th March 1944. 152 Indian Para Battalion was Under Brigadier Hope Thomson's 50th Para Brigade...