World War II and civil war: 1939-1950
The Axis invasion
When WWII broke out, Greece tried to stay neutral. But in October 1940, Italy delivered an ultimatum. Prime Minister Metaxás responded with a defiant “Ohi” (No) — now a national holiday. Greece pushed the Italians out and even advanced into southern Albania.
Humiliated, Hitler intervened. In April 1941, German forces invaded from Bulgaria. The British sent a small force, but within weeks, Greece was overrun. The royal family fled to Egypt. Metaxás had died earlier that year, leaving Greece without leadership.
Occupation and resistance
The Axis occupation — German, Italian, and Bulgarian — was brutal. Half a million civilians died in the winter of 1941-42, mostly from starvation. Entire villages were wiped out in retaliation for resistance. In the north, the Bulgarians attempted cultural erasure in occupied Macedonia and Thrace.
Despite this, resistance flourished. The largest group, ELAS, was formed in 1941 and fought alongside its political wing, EAM. Led mainly by communists, they gained mass support, especially in rural areas. By 1943, they controlled much of the country and coordinated with British agents from the Special Operations Executive (SOE).
But Churchill feared postwar communist influence. He ordered British support shifted to right-wing groups like EDES, sidelining ELAS despite their success. When EAM leaders proposed a postwar coalition in 1943, King George — backed by Churchill — refused.
Liberation and Civil War
As the Germans retreated in 1944, ELAS briefly joined a unity government led by George Papandreou. But tensions exploded in December, when police opened fire on an EAM rally in Athens. Street fighting between ELAS and British troops devastated the capital. A ceasefire in February 1945 temporarily paused the violence.
However, postwar Greece remained deeply divided. Power was left in right-wing hands, former collaborators kept their posts, and leftists were purged. The KKE (Greek Communist Party) boycotted the 1946 elections, which returned the monarchy via a rigged plebiscite. By summer, civil war had resumed.
The Cold War hits Greece
By 1947, civil war raged again. ELAS, rebranded as the Democratic Army of Greece (DSE), took to the mountains. The US replaced Britain as Greece’s main backer under the Truman Doctrine, pouring military aid into the royalist army.
King George died, replaced by his brother Paul, while US advisors trained the Greek army in counterinsurgency. The DSE held out in northern Greece near the Albanian border, but support faded fast. Stalin pulled out in 1948, and Tito closed the Yugoslav border in 1949.
Cut off and outgunned, the DSE collapsed. The KKE declared a “temporary” end to the civil war. It was, effectively, a defeat. Greece emerged battered — physically, politically, and socially — from a decade of war.