Question: James Patrick Aylward, was a Missouri attorney, Democratic party leader, and a political associate of Harry S. Truman, he was the 33rd President of the United States (1945–53), assuming that office upon the death of Franklin D. Roosevelt during the waning months, of which historic event?
Sentence (from "Harry S. Truman"): He is known for launching the Marshall Plan to rebuild the economy of Western Europe, for leading the Cold War against Soviet and Chinese communism by establishing the Truman Doctrine and NATO, and for intervening in the Korean War.
Relevant evidence: No