Complex sentence: After a failed gubernatorial bid in 1939, Cooper joined the Army in 1942, serving in General George Patton's Third Army during World War II. He earned the Bronze Star Medal for reorganizing the Bavarian judicial system after the allied victory in Europe.
Split into simpler sentences: After a failed gubernatorial bid in 1939, he joined the Army in 1942. During World War II, he earned the Bronze Star Medal for reorganizing the Bavarian judicial system after the allied victory in Europe.