 He, along with Georgios Papadopoulos and Nikolaos Makarezos, planned and executed the coup on the night of April 20 to April 21, 1967, claiming political anomaly had made them to do so.Many leading politicians and journalists were arrested that night and were led to a hotel in Pikermi.Among them were Kοnstantinos Mitsotakis, Andreas Papandreou, Georgios Rallis, Manolis Glezos.Pattakos was assigned the Ministry of the Interior..