The Dekemvriana (Greek: Δεκεμβριανά, "December events") refers to a series of clashes fought during World War II in Athens from 3 December 1944 to 11 January 1945 between the Greek left-wing Resistance forces (the EAM-ELAS, the KKE) and the British Army supported by the Greek Government, the Cities Police and the far-right Organization X of Georgios Grivas.