The Subhas Brigade, or the 1st Guerrilla Regiment was a unit of the Indian National Army (INA).

Towards end of 1944, Netaji Subhas Chandra Bose gave Khan the command of 4th Guerrilla Regiment also called the Nehru Brigade.

The 2nd Guerrilla Regiment was attached later in the battle to Yamamoto Force.

The INA's Gandhi Brigade or 2nd Guerrilla Regiment, of two battalions led by Inayat Kiyani, took part in this attack.

Towards the end of May, the INA's 1st Guerrilla Regiment had been redirected to Kohima.

Rodrigues raised the 5th Guerrilla Regiment at Bidadari in Singapore.

On 30 March 1944, the 5th Guerrilla Regiment moved to Ipoh in Perak.

The 2nd Guerrilla Regiment, or the Gandhi Regiment as it was called, consisted of two battalions.

The lightly armed 1st battalion of the Indian National Army's 1st Guerrilla Regiment had been directed to participate in this diversionary attack.

Pagan and Nyaungu were defended by two battalions of the Indian National Army's 4th Guerrilla Regiment, with one held in reserve.