1960 Turkish coup d'état

Military coup against Turkish Prime Minister Menderes

The 1960 Turkish coup d'état (27 Mayıs Darbesi) also known as the 27th May Revolution (27 Mayıs İhtilali) was the first coup d'état in the Republic of Turkey. It took place on May 27, 1960. The coup was staged by a group of 38 young Turkish military officers, acting outside the military chain of command. The officers were de facto led by Cemal Madanoğlu until the actual coup date. After a threat by Ragıp Gümüşpala that he would move to quell the coup unless it was led by someone with a higher military rank than himself, the officers brought in General Cemal Gürsel as their leader. The coup was carried out against the democratically elected government of the Democrat Party, and ultimately resulted in the execution of its prime minister, Adnan Menderes, alongside two of his ministers, Fatin Rüştü Zorlu and Hasan Polatkan.

The incident took place at a time of both socio political turmoil and economic hardship, as US aid from the Truman doctrine and the Marshall Plan was running out and so Prime Minister Adnan Menderes planned to visit Moscow in the hope of establishing alternative lines of credit.

Colonel Alparslan Türkeş was among the officers who led the coup. He was a member of the junta (National Unity Committee) and had been among the first 16 officers trained by the United States in 1948 to form a stay behind counter guerrilla. As such, he explicitly stated his anticommunism and his faith and allegiance to NATO and CENTO in his short address to nation, but he remained vague on the reasons of the coup. On the morning of May 27, Türkeş declared the coup over radio, which ultimately announced "the end of one period in Turkish history, and usher in a new one":

In a press conference on the following day, Cemal Gürsel emphasized that the "purpose and the aim of the coup is to bring the country with all speed to a fair, clean and solid democracy I want to transfer power and the administration of the nation to the free choice of the people" However, a Ondörtler [tr] within the junta around Türkeş supported a steadfast military leadership, an authoritarian rule similar as it was with the Committee of Union and Progress or during Mustafa Kemal Atatürk's regime. Several hundred Kurdish Alevi notables were detained in a Camp in Sivas. 55, of which most were affiliated with the DP and several were Kurdish Members of the Grand National Assembly of Turkey were deported to western provinces. Celal Bayar was not hanged, but imprisoned on İmralı prison.

A constitutional referendum was held on 9 July 1961. A new constitution was drawn up to replace the one from 1924. It was approved by 61.7% of voters, with an 81.0% turnout. A month after the execution of Menderes and other members of the Turkish government, general elections were held on 15 October 1961. The administrative authority was returned to civilians, but the military continued to dominate the political scene until October 1965. İsmet İnönü held the office of Prime Minister for the third time from 1961 to 1965. Turkish Army Colonel Talat Aydemir organised two failed coups d'état in February 1962 and May 1963. In the first free elections after the coup, in 1965, Süleyman Demirel was elected and held the office until 1971, when he was removed by a military memorandum. The government that was formed after the coup, although it did not last long in power, created a political atmosphere that led to the most unique and mass emergence of the left in Turkey's history. It is considered a revolution by the People's Liberation Party (HKP) as well as the Patriotic Party (VP).