According to the passage, what were George C. Marshall's nonmilitary contributions after World War II? Check all that apply.

A. He served as president of the United States.
B. He assisted in developing NATO, which helped Western Europe rebuild after the war.
C. He redesigned and reconstructed key government buildings in Western Europe that were destroyed in the war.
D. He created the Marshall Plan, which provided economic support for war-torn regions.
E. He helped stop the spread of communism in Western Europe.