Former Marine Donovan Campbell served three combat deployments, two in Iraq and one in Afghanistan. In Iraq, he commanded Joker One, a platoon of new Marines that he trained and transformed into a fighting unit. They were assigned to Ramadi, the capital of the Sunni-dominated Anbar province where they engaged in daily house-to-house combat with insurgents.
Campbell has written a memoir about his experiences with the platoon called Joker One: A Marine Platoon's Story of Courage, Leadership, and Brotherhood.
