The Nehru Brigade or 4th Guerrilla Regiment was a unit of the

Indian National Army The Indian National Army (INA; ''Azad Hind Fauj'' ; 'Free Indian Army') was a collaborationist armed force formed by Indian collaborators and Imperial Japan on 1 September 1942 in Southeast Asia during World War II. Its aim was to secure In ...

, that formed a part of the

First INA The First Indian National Army (First INA) was the Indian National Army as it existed between February and December 1942. It was formed with Japanese aid and support after the Fall of Singapore and consisted of approximately 12,000 of the 40,00 ...

and later part of the 1st Division after the INA's revival under Subhas Chandra Bose. The unit did not participate in the INA's Imphal campaign, and was later transferred to the command of Lt. Col. Gurubaksh Singh Dhillon in 1944. It fought against the Commonwealth forces during the Irrawaddy crossing and later in around Popa Hill.

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