How a group of middle-ranking colonels seized control of Greece in a single night

History · Published 29 September 2026 Swipe more like this →

In short: In April 1967, a clandestine military cabal executed a swift, surprise coup in Athens, arresting thousands and suspending the constitution. This regime, which ruled for seven years, claimed it was saving the nation from a communist conspiracy, but the reality was a complex power struggle involving the monarchy and military elites.

The 1967 coup was the culmination of decades of political instability in Greece, tracing back to the resistance against Axis occupation during World War II. Following the war, the country descended into a brutal civil war between communist partisans and government forces. By the 1950s, a secret society of officers known as IDEA had formed, advocating for dictatorship as the only solution to national problems. Future junta leader Georgios Papadopoulos was a key member of this group, which operated with the support of American and British intelligence networks.

By 1967, Greece faced a constitutional crisis involving the young King Constantine II and the Centre Union party. As elections approached, conservative politicians and military leaders feared a victory for the left-leaning Georgios Papandreou and his son, Andreas. On 21 April 1967, Brigadier Stylianos Pattakos and Colonels Papadopoulos and Nikolaos Makarezos launched their coup. They utilized pre-prepared lists to arrest over 10,000 people, including the prime minister and the army's commander-in-chief, effectively seizing control of the state in a matter of hours.

The regime, which styled itself as a 'revolution to save the nation,' justified its existence through extreme anti-communism and a desire to reform the 'Greek mentality.' Intellectuals associated with the junta argued that Western consumerism had eroded spiritual values, proposing that the military could restore traditional Orthodoxy. Despite the regime's attempts to gain legitimacy through referendums and new constitutions, it remained an authoritarian project. The junta eventually collapsed in 1974 following the Turkish invasion of Cyprus, leading to the establishment of the Third Hellenic Republic.

The role of King Constantine II remains a subject of intense debate. While he initially swore in the junta's government, he later attempted a failed counter-coup in December 1967. His subsequent flight into exile and the eventual abolition of the monarchy in 1973 marked the end of royal influence in Greek politics. The period remains a defining, if painful, chapter in modern Greek history, illustrating the fragility of democratic institutions when faced with entrenched military factions.

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