[citation needed] After a prolonged guerrilla warfare was launched by Bangladesh Forces, which continued for a number of months.

This operation from the Naval Commandos made ports in Chittagong and Mongla highly lethal for the occupation forces.

[4] The official date of formation of the Bangladesh Air Force (BAF) has been established as 28 September 1971 and it was launched formally by the Provisional Government on 8 October 1971.

BAF was formed with all officers and airmen of Bengali origin serving in the Pakistan Air Force prior to the war.

[6] The day starts with laying of floral wreath at Shikha Anirban (Bengali: শিখা অনির্বাণ, romanized: Eternal Flame) at Dhaka Cantonment by the President, the Prime Minister and the Service Chiefs.