The Truman Doctrine for the first time committed the U.S. To a peacetime military alliance Truman publicly and finally rejected Stalin's offer of friendly negotiations between onetime allies Truman's pledge to support free peoples who resisted totalitarian takeover signaled an open-ended intent to oppose the Soviets anywhere in the world Sending military advisers to Greece was the first step in U.S. Involvement in the Middle East quagmire
