During the Bangladesh Liberation War of 1971, a sub-sector of Sector 9 was founded in Koyra's Amati Union known as Bachharbari-Manoranjan Camp, and so most of the Mukti Bahini's and Mujib Bahini's operations were launched from here. The Bengali freedom fighters built five camps in Koyra; World Poet Camp led by Abd al-Latif, Najmul Camp led by KM Mujibur Rahman, Nazrul Camp led by Abd al-Hakim, Narayan Camp led by Keramat Ali, Shaykh Abd al-Jalil and Shamsur Rahman in Jhileghata and the Suhrawardy Camp led by Rezaul Karim in Bamiya, Bagali Union. In Jaygirmahal, Dr Rafiqul Islam ran a secret medical centre to provide treatment to wounded freedom fighters. A mass grave was found in Launch Ghat, Marighata.