>>On 21 April 1967, just weeks before the scheduled elections, a group of right-wing army officers led by Brigadier General Stylianos Pattakos and Colonels George Papadopoulos and Nikolaos Makarezos seized power in a coup d'état.[19] The colonels were able to seize power quickly by using elements of surprise and confusion. Pattakos was the commander of the Armour Training Centre (Κέντρο Εκπαίδευσης Τεθωρακισμένων, ΚΕΤΘ), based in Athens. The coup leaders placed tanks in strategic positions in Athens, effectively gaining complete control of the city. At the same time, a large number of small mobile units were dispatched to arrest leading politicians, authority figures, and ordinary citizens suspected of left-wing sympathies, according to lists prepared in advance. One of the first to be arrested was Lieutenant General Grigorios Spandidakis, Commander-in-Chief of the Greek Army. The colonels persuaded Spandidakis to join them, having him activate a previously-drafted action plan to move the coup forward. Under the command of paratrooper Brigadier General Kostas Aslanides, the LOK took over the Greek Defence Ministry while Pattakos gained control of communication centers, the parliament, the royal palace, and – according to detailed lists – arrested over 10,000 people.[20]