World War I Russian Civil War Greco-Turkish War (1919-1922) World War II Dimitrios Psarros (Greek: Δημήτριος Ψαρρός; 1893 – April 17, 1944) was a Greek army officer, founder and leader of the resistance group National and Social Liberation (EKKA), the third-most significant organization of the Greek Resistance movement after the National Liberation Front (EAM) and the National Republican Greek League (EDES).

When Greece entered World War II, he sought re-appointment into the armed forces but was refused by the Ioannis Metaxas dictatorship.

Following the collapse of the front through the German invasion of Greece in April 1941 and the onset of a triple occupation by Germany, Italy and Bulgaria, Psarros first attempted to organise a resistance group in Amfissa with the help of Lt. Andreas Mitalas, but without success.

There, in July 1941, he co-founded the organization Freedom (Greek: Ελευθερία, Eleftheria) with communists members, which deployed guerilla forces in the area of Nigrita, Lachana, and Kalokastro of Central Macedonia, to fight the Bulgarians, who had followed the Germans into Greece, occupied much of northern Greece and had set their sights on permanent annexation.

[citation needed] The assassination of Colonel Psarros was a dark point of Greek Resistance era.