Operation Iraqi Freedom commenced on the evening of March 20, 2003, following preliminary strikes by coalition forces and Ground to Ground Missile attacks by Iraqi forces on Ali Al Salem Air Base. HMM-364 was involved from the first night, supporting attacks by the 1st Marine Division's Regimental Combat Team 7, as well as the Royal Marines's 42 Commando. Squadron aircrews conducted Casualty Evacuation (CASEVAC) missions in direct support of RCT-7 Headquarters for the duration of the war, traveling with the 1st Marine Division from Basra to downtown Baghdad. HMM-364 aircraft also flew Logistical Support throughout the theater, flying over 640 hours in combat and direct combat support per month for both March and April.