Finally, Hanoi determined to keep its fences mended with Sihanouk, at least in public. During the Third Party Congress of September 1960 *— convened in Hanoi to inform the Party rank-and-file of the Politburo's decision to overthrow Diem — Le Duan called for the "full implementation of the Geneva agreements" with respect to Cambodia, whose policy of peace and neutrality, he said, was being "sabotaged" by the United States. Pham Van Dong, who had been Sihanouk's chief antagonist at Geneva, added beneficently a short time later that Cambodia was bound to achieve "further successes. . under the leadership of the Prince.