During the relatively open government of the 1950s in Turkey, Kurds gained political office and started working within the framework of the Turkish Republic to further their interests, but this move towards integration was halted with the 1960 Turkish coup d'état. The 1970s saw an evolution in Kurdish nationalism as Marxist political thought influenced some in the new generation of Kurdish nationalists opposed to the local feudal authorities who had been a traditional source of opposition to authority; in 1978 Kurdish students would form the militant separatist organization PKK, also known as the Kurdistan Workers' Party in English. The Kurdistan Workers' Party later abandoned Marxism-Leninism.