His primary research interests are in the area of social influence and workplace deviance. He served as an aviation officer in the U.S. Army where he commanded an Air Cavalry Troop – Crusaders, and a Headquarters Troop – Six Shooters. He hopes that he was able to walk that fine line of being respected, trusted, and liked during his time in command. Charn flew the OH-58D Kiowa Warrior during two deployments in support of Operation Iraqi Freedom and Operation New Dawn. He departed the Army as a Captain, and his awards include the Bronze Star, Air Medal, and Combat Action Badge.