His most important role came as Foreign Secretary in the post-war Labour government, 1945–1951. He gained American financial support, strongly opposed communism, and aided in the creation of NATO. Bevin was also instrumental to the founding of the Information Research Department (IRD), a secret propaganda wing of the UK Foreign Office which specialised in disinformation, anti-communism, and pro-colonial propaganda. Bevin's tenure also saw the end of British rule in India and the independence of India and Pakistan, as well as the end of the Mandate of Palestine and the creation of the State of Israel. His biographer Alan Bullock said that Bevin "stands as the last of the line of foreign secretaries in the tradition created by Castlereagh, Canning and Palmerston in the first half of the 19th century".