Delta Platoon was sent to Iraq in April 2006 and assigned to train Iraqi Army soldiers in Ramadi. Over the next five months, Monsoor and his platoon frequently engaged in combat with insurgent forces. On September 29, 2006, an insurgent threw a grenade onto a rooftop where Monsoor and several other SEALs and Iraqi soldiers were positioned. Monsoor quickly smothered the grenade with his body, absorbing the resulting explosion and saving his comrades from serious injury or death. Monsoor died about 30 minutes later from wounds caused by the grenade explosion.