Step 1 : Introduction to the question "Which of the following actors served in the U.S. military? John Wayne, Sylvester Stallone, Chuck Norris, Mark Wahlberg "
He is an American martial artist, actor, film producer and screenwriter. After serving in the United States Air Force, he began his rise to fame as a martial artist, and has since founded his own school of fighting, Chun Kuk Do.
