Definition
Dean Acheson, a key figure in 20th-century American foreign policy, served as Secretary of State under President Truman. He's known for his instrumental role in creating NATO and the Marshall Plan, which reshaped post-World War II Europe. Think of him as a master architect of international relations. His firm stance against Soviet expansion defined much of the Cold War era. He had a clear vision for America's global leadership. Dean Acheson shaped a new world order.