The Mk19 grenade launcher, first introduced during the Vietnam War, remains a cornerstone of U.S. military firepower. This ...

on Hill 146 in the Quan Duc Duc Valley while serving in South Vietnam. While his patrol was being attacked by a platoon-sized enemy force, a hand grenade landed in the foxhole that he shared with ...

Medal of Honor recipient Col. Donald 'Doc' Ballard (Ret.) joined 'Fox & Friends First' to discuss his service to the country after he saved his fellow Marines decades ago during a grenade attack.