In several speeches between late 2001 and 2002, Bush expanded on his view of the US foreign policy and global intervention, declaring that the US should actively support democratic governments around the world, especially in the Middle East, as a strategy for combating the threat of terrorism, and that the nation had to act unilaterally in its own security interests, without approval of international bodies like the United Nations. This represented a departure from the Cold War policies of deterrence and containment under the Truman Doctrine and post–Cold War philosophies such as the Powell Doctrine and the Clinton Doctrine.