At the end of World War II the Greek Communist party (KKE) claimed that it would seek an accommodation with its domestic opponents, but the party soon launched a full-scale insurrection on its own initiative in the expectation of receiving decisive support from the Soviet Union. With civil war under way, the head of the KKE, Nikos Zahariadis, repeatedly told Soviet officials that victory was certain if the Greek Communists could obtain funding, weapons, and other equipment from the USSR and its allies. Although Soviet leaders were concerned that the KKE's aggressiveness would provoke a U.S. reaction, they permitted the clandestine shipment of large quantities of supplies that delayed but could not avert the insurgents' defeat. U.S. officials at the time largely misperceived the causes of the insurrection, but they correctly sensed that the KKE's dependence on Soviet-bloc assistance would ensure that a Communist victory would bring Greece into Moscow's orbit.