Johnny Cash

Before he was writing Ring of Fire, he was deep in it. Johnny Cash was born in Arkansas and saw military culture as a big part of his life. He enlisted in the Air Force in 1950 and was assigned to the 12th Radio Squadron Mobile of the U.S. Air Force Security Service, moving him to Landsberg, Germany. There, he learned morse code and intercepted Soviet transmissions. 

Charlton Heston

Though he appeared in over 100 films in his life, he got his start in the service. Charleton Heston enlisted in the army around 1941. He was moved to a base in Alaska and worked as a radio operator during World War II. On the B-25 Mitchell bomber, he also worked as an aerial gunner. He held the highest national clearance for six years due to narrating instructional videos for nuclear bomb workers.