Simplify the following text for a Grade 5 native English-speaking person.
Original: George Smith Patton , Jr. ( November 11 , 1885 â `` December 21 , 1945 ) was a United States Army officer best known for his leadership while commanding corps and armies as a general during World War II .
Simplified: George Smith Patton , Jr. ( also George Smith Patton III ) ( November 11 , 1885 â `` December 21 , 1945 ) was a U.S. Army officer .