The statements that describe George C. Marshall's contributions are
He served as Chief of Staff of the U.S. Army during World War II.
His leadership in developing weapons and soldiers led to the Allied victory in the war.
His Marshall Plan assisted in the rebuilding of Europe after the war.
He was awarded the Nobel Peace Prize.
As Chief of Staff, he organized the largest military expansion in U.S. history. He coordinated allied operations during WW II. His plan to rebuild Europe after the war, which is known as the Marshall Plan, made him win the Nobel Peace Prize.