In foreign policy, attorney-general and minister for external affairs H. V. Evatt was active in the formation of the United Nations. Australia played a significant mediatory role in the early years of the United Nations, successfully lobbying for an increased role for smaller and middle-ranking nations, and a stronger commitment to employment rights into the U.N. Charter. Evatt was elected president of the third session of the United Nations General Assembly (September 1948 to May 1949). Internationally, the rise of Communism was a developing concern for many in Australia. Chifley sought to oppose the re-establishment of Dutch control of Indonesia and refused help to British efforts to quell the developing insurgency in Malaya. The Catholic-based "Movement" meanwhile campaigned strongly to drive Communists out of leadership positions in trade unions, prefiguring a coming split in the ALP over the growing influence of the Movement.