The Free Aceh Movement (Indonesian: Gerakan Aceh Merdeka or simply GAM, Acehnese: Geurakan Acèh Meurdèka, also known as the Acheh-Sumatra National Liberation Front (ASNLF), was a separatist group seeking independence for the Aceh region of Sumatra from Indonesia. GAM fought against Indonesian government forces in the Aceh Insurgency from 1976 to 2005, during which over 15,000 lives are believed to have been lost.