Major Ambrose Brennan, born in 1939, entered the infantry after graduating from the US Military Academy. He didn't really consider any other branch, he just wanted to do what they did in the movies. The majority of his service was during the Cold War and he says the only "shooting war" he served in was Vietnam. He was awarded a myriad of medals, including a purple heart.

Colonel Cox served in the US Army after going to college and went to advanced camp at Fort Bragg, North Carolina in order to become a commissioned officer. He served in the infantry branch and was deployed to Iraq twice, once in 2003 and another time in 2009.

Marshall Ospina interviews Paul Maney who served during the Vietnam War. He describes his time in Basic Training as very dark and disturbing. He was trained in Fort Dix, but never deployed, and spent most of his time doing administrative work in Colorado. He did not like serving in the military and got out as soon as he could. He used the GI Bill to go to school and eventually became a professor of military history.