This document discusses several aspects of US foreign policy, including how the president and congress establish policy, examples like the Truman Doctrine and involvement in NATO, and support for organizations like the UN and World Hunger Organization. The Truman Doctrine established US policy to provide military and economic support to Greece and Turkey in response to Soviet actions. Through NATO, the US commits to political and military support of other member nations in return for their defense of the US. The UN and World Hunger Organization receive US funding and support to promote peace, development, and end hunger globally.