Papandreou returned to Greece after the events in Cyprus and the fall of the junta in 1974, during metapolitefsi. He was offered the leadership of his father's old party, which had evolved into Centre Union – New Forces. However, he not only turned it down, but rejected his father's ideological heritage as a Venizelist liberal, declaring himself a democratic socialist. To that end, he formed a new "radical" party, the Panhellenic Socialist Movement (PASOK). Most of his former PAK companions, as well as members of other leftist groups such as the Democratic Defense joined in the new party. He also testified in the first of the Greek Junta Trials about the alleged involvement of the junta with the Central Intelligence Agency (CIA).