 The Chams, little integrated into Christian Greek society, had been a subject of Italian-sponsored Albanian irredentism both before and during the war, while a large part had collaborated with the Axis, taking part in reprisal actions against the Greek population.A small part joined the left-wing EAM-ELAS guerrillas.On 18 June 1944, EDES forces under Zervas with Allied support launched an attack on Paramythia, in Thesprotia.