He returned to Greece in 1945, after his selection as prime minister following the December events of 1944, primarily because he was a commonly accepted personality. Plastiras attempted to tread a middle path between the British, who were supporting the returned government-in-exile and the return of King George II, and the democratic-leftist guerilla of the EAM/ELAS. During his premiership, the Varkiza Agreement was signed. His moderate policies and republican sympathies earned the distrust of the British, and he was dismissed after only three months in office, when the Press published a letter of him during the war, proposing the German intervention to stop the Greco-Italian war.