Brigade Organisation and Operations
From 10-17 Jul 71, in a cabinet meeting of the provisional Government, the liberation war was structured by dividing Bangladesh into 11 war zones/ sectors and organization of Bangladeshi regular forces to operate as compact Guerrilla groups. Later three regular Infantry Brigades, the ‘Z’, ‘K’ and ‘S’ force were raised to fight conventional battles.
The Z force commanded by Lt Col Ziaur Rahman comprised of 1, 3 & 8 East Bengal Regiments, 2 Field Battery artillery & 01 Signal Company. The Z force fought remarkable battles operating in Moimansingh, Jamalpur, Sherpur, Bowmari, Sylhet, Sunamganj & Moulvibazar areas.Some remarkable operation sof the Z force qare the Kamalpur battle, Bahadurabad Ghat operation, Deoewanganj Police station attack, Nakshi attack, Chillimari battle, Hazipara battle, Chotokhal, Goainghat, Tengratila, Gobindoganj, Lamakazi, Salutikar airport, Dholai Dhamai tea garden, Zakiganj, Ali maidan, Sylhet MC College, Bhanigacha, Kanaighat, Fultola tea ghat, Borolekha, Latu, Sagarnal tea garden, Chatk and Radhanagar.
The K force, formed in Sep 71 comprised of 4, 9 & 10 East Bengal regiments, 1 Field Battery and one Signal Company. Amongst the remarkable battles of this force are Kumilla city battle, Chailatha battle, Noakhali battle, Kasba battle, Barchargram battle, Miyabazar battle, Gazipur battle, Feni, Chattogram and Mainamati capture.
The S Force formed in Oct 71, comprised of 2 & 11 East Bengal Regiments. The force has to its credit, remarkable victories in the Bamutiya operation, ,ukundapur operation, Brahmanbariya battle, Bhairab and and Bilonia battles.