![](https://www.historynet.com/wp-content/uploads/2018/12/MiG-17-Kuster-960_640.jpg)
Gun Camera footage shows U.S. Air Force Major Ralph L. Kuster shooting down a MiG-17 over North Vietnam from his F-105D on June 3, 1968. Because of the American rules of engagement, however, U.S. forces didn’t always have the advantage in combat. (U.S. Air Force)