1960 Turkish coup d'état

1960 Turkish coup d'état
Title	1960 Turkish coup d'état
Date	27 May 1960
Place	Ankara, Istanbul, Turkey
Result	Overthrow of the Democrat Party government; establishment of the National Unity Committee
Commanders and leaders	Cemal Gürsel, Alparslan Türkeş, Turhan Feyzioğlu, Sait Maden
Opposing forces	Adnan Menderes, Fahrettin Altay, Celâl Bayar

1960 Turkish coup d'état was a military intervention that removed the ruling Democrat Party leadership on 27 May 1960. Officers of the Turkish Armed Forces acting through the National Unity Committee seized key locations in Ankara, İstanbul, and other provinces, deposing Prime Minister Adnan Menderes and President Celâl Bayar and initiating a period of military rule and high-profile trials.

Background and political context

In the 1950s the Democrat Party under Adnan Menderes rose to power following elections against the Republican People's Party led by İsmet İnönü and presided over by Celâl Bayar, provoking tensions with proponents of the Kemalist establishment including factions within the Turkish Armed Forces, the Constitutional Court, and elements of the civil service. Economic shifts after the Marshall Plan era, disputes over press freedoms involving newspapers such as Ulus, Vatan, and legal conflicts with figures like İnönü and jurists contributed to confrontations between the Democrat Party and institutions such as the Grand National Assembly of Turkey and the Supreme Military Command. Political polarization intensified following controversial measures against opposition deputies, the use of Special Laws and emergency decrees, and clashes with trade unionists affiliated with Türkiye İşçi Partisi and student activists influenced by currents in İstanbul University and Ankara University.

The coup: planning and execution (27 May 1960)

Officers disaffected with policies of the Democrat Party formed a clandestine group culminating in the National Unity Committee and coordinated operations drawing on commanders from formations stationed at Kocaeli, Eskişehir, and Sakarya. The putschists, including mid-ranking officers trained at the Turkish Military Academy, mobilized armored units and Polis Teşkilatı detachments to secure the Grand National Assembly of Turkey, Ankara Radio, rail hubs, and airports at Esenboğa Airport and Yeşilköy Airport. Key figures such as Cemal Gürsel were announced as provisional leaders after detaining Prime Minister Adnan Menderes, President Celâl Bayar, and other Democrat Party officials; media outlets including Ankara Radio and newspapers like Milliyet and Tercüman broadcast the coup declarations. Martial arrangements mirrored earlier interventions elsewhere, invoking institutions like the Turkish General Staff and referencing constitutional vacuum remedies debated in the Grand National Assembly of Turkey.

Immediate aftermath and transitional government

Following the seizure, the National Unity Committee dissolved the Democrat Party leadership, suspended parts of the Turkish Constitution of 1924, and appointed Cemal Gürsel as head of the provisional administration while maintaining communication with provincial governors in İzmir, Antalya, and Samsun. Civilian politicians including dissenters from the Republican People's Party and academics from Ankara University and İstanbul University were consulted to draft a new charter; committees involving legal scholars from the Istanbul University Faculty of Law and members of the Bar Association of Turkey addressed constitutional reforms. The coup authorities imposed curfews, censored periodicals such as Hürriyet and Cumhuriyet, and restructured bureaucratic posts, triggering administrative purges targeting appointees of the Democrat Party in institutions including the Central Bank of the Republic of Turkey and state enterprises like Türkiye Petrolleri.

Trials, Yassıada proceedings, and legal repercussions

The junta established tribunals on Yassıada to try former officials; defendants included Adnan Menderes, Fatin Rüştü Zorlu, and Hasan Polatkan, prosecuted under charges that invoked statutes concerning treason, misuse of office, and violations of public trust as interpreted by the National Unity Committee. Proceedings on Yassıada were presided over by military and civilian judges drawn from the High Court of Appeals (Yargıtay) and produced convictions resulting in sentences including imprisonment, exile, and death; executions were carried out for Adnan Menderes, Fatin Rüştü Zorlu, and Hasan Polatkan after appeals to bodies such as the Grand National Assembly of Turkey and petitions involving figures like Celâl Bayar. Legal debates over retroactive application of statutes, the role of military tribunals versus civilian courts, and the impact on Turkish jurisprudence engaged jurists connected to Ankara Barosu and international observers from institutions like the International Commission of Jurists.

Domestic and international reactions

Domestically, reactions ranged from supporters of the Republican People's Party and secularist factions within İstanbul and Ankara who welcomed the intervention to rural and provincial constituencies loyal to the Democrat Party who protested arrests and trials; labor groups and student organizations at Istanbul Technical University and Middle East Technical University voiced varied responses. Internationally, the United States Department of State and NATO allies monitored developments amid Cold War dynamics involving the Truman Doctrine legacy, while the Soviet Union and Warsaw Pact observers framed the coup within broader East–West tensions; diplomatic channels in Washington, D.C., London, and Moscow engaged with the National Unity Committee about arms agreements, the Baghdad Pact, and Turkey's role in NATO. Press agencies such as Reuters, Associated Press, and Agence France-Presse covered the trials and executions, influencing bilateral relations with countries including Greece, Israel, and West Germany.

Long-term political consequences and legacy

The intervention precipitated drafting of the 1961 Constitution through a constituent assembly involving representatives from the National Unity Committee, the Republican People's Party, and nonpartisan delegates from universities like Ankara University, shaping institutions such as the Constitutional Court of Turkey and enhancing protections tied to civil liberties as debated by legal scholars affiliated with İstanbul University and Ankara Barosu. The episode influenced later interventions involving elements of the Turkish Armed Forces and informed debates about civil-military relations discussed in studies from the Turkish Historical Society and analyses by political scientists at Boğaziçi University and Middle East Technical University. Memorialization, contested narratives, and legal rehabilitation efforts engaged politicians from successor parties to the Democrat Party such as the Justice Party and later movements tied to figures like Necmettin Erbakan and Süleyman Demirel, while the Yassıada trials remain focal in commemorations, museum exhibitions in İstanbul, and scholarly work archived at the Prime Ministry Ottoman Archives and university libraries.

Category:Military coups in Turkey Category:1960 in Turkey