U.S. Marine Corps F-35B Lightning II aircraft with Marine Fighter Attack Squadron (VMFA) 122, Marine Aircraft Group 13, 3rd Marine Aircraft Wing, takeoff during suppression of enemy air defense training in support of Exercise Steel Knight 23.2 at Marine Corps Air Station Yuma, Arizona, Dec. 6, 2023. SEAD training increases the ability of fifth-generation fighter pilots to enter the fight first, strike targets deep within an enemy air defense system, and enable follow on strikes by supporting weapons platforms. Steel Knight 23.2 is a three-phase exercise designed to train I Marine Expeditionary Force in the planning, deployment and command and control of a joint force against a peer or near-peer adversary combat force and enhance existing live-fire and maneuver capabilities of the Marine Air-Ground Task Force. (U.S. Marine Corps photo by Lance Cpl. Elizabeth Gallagher) - U.S. Marine Corps F-35B Lightning II aircraft with Marine Fighter Attack Squadron (VMFA) 122, Marine Aircraft Group 13, 3rd Marine Aircraft Wing, takeoff during suppression of enemy air defense training in support of Exercise Steel Knight 23.2 at Marine Corps Air Station Yuma, Arizona, Dec. 6, 2023. SEAD training increases the ability of fifth-generation fighter pilots to enter the fight first, strike targets deep within an enemy air defense system, and enable follow on strikes by supporting weapons platforms. Steel Knight 23.2 is a three-phase exercise designed to train I Marine Expeditionary Force in the planning, deployment and command and control of a joint force against a peer or near-peer adversary combat force and enhance existing live-fire and maneuver capabilities of the Marine Air-Ground Task Force. (U.S. Marine Corps photo by Lance Cpl. Elizabeth Gallagher)

U.S. Marines with the 3rd Marine Aircraft Wing All Type Model Series Armament Team unload ordnance from a CH-53E Super Stallion helicopter at a forward arming and refueling point in support of Exercise Steel Knight 23.2 at Inyokern Airfield, California, Dec. 2, 2023. ATAT is comprised of aviation ordnance Marines qualified to load and arm every type model series platform in the 3rd MAW fleet. Steel Knight 23.2 is a three-phase exercise designed to train I Marine Expeditionary Force in the planning, deployment and command and control of a joint force against a peer or near-peer adversary combat force and enhance existing live-fire and maneuver capabilities of the Marine Air-Ground Task Force. (U.S. Marine Corps photo by Lance Cpl. Jennifer Sanchez) - U.S. Marines with the 3rd Marine Aircraft Wing All Type Model Series Armament Team unload ordnance from a CH-53E Super Stallion helicopter at a forward arming and refueling point in support of Exercise Steel Knight 23.2 at Inyokern Airfield, California, Dec. 2, 2023. ATAT is comprised of aviation ordnance Marines qualified to load and arm every type model series platform in the 3rd MAW fleet. Steel Knight 23.2 is a three-phase exercise designed to train I Marine Expeditionary Force in the planning, deployment and command and control of a joint force against a peer or near-peer adversary combat force and enhance existing live-fire and maneuver capabilities of the Marine Air-Ground Task Force. (U.S. Marine Corps photo by Lance Cpl. Jennifer Sanchez)

U.S. Marines with 3rd Marine Aircraft Wing and I Marine Expeditionary Force, U.S. Space Force Guardians with Space Systems Command, and Mobile User Objective System Program Office personnel attend a MUOS presentation at Marine Corps Air Station Miramar, California, Nov. 16, 2023. Members of Space Systems Command and the MUOS Program Office engaged with 3rd MAW and I Marine Expeditionary Force Marines to understand end-user considerations and see MUOS used at the tactical level. MUOS elevates Marine Corps warfighting capabilities by enhancing long-range, rapid communication and expanding the operational reach of the U.S. Armed Forces. (U.S. Marine Corps Photo by Cpl. Daniel Childs) - U.S. Marines with 3rd Marine Aircraft Wing and I Marine Expeditionary Force, U.S. Space Force Guardians with Space Systems Command, and Mobile User Objective System Program Office personnel attend a MUOS presentation at Marine Corps Air Station Miramar, California, Nov. 16, 2023. Members of Space Systems Command and the MUOS Program Office engaged with 3rd MAW and I Marine Expeditionary Force Marines to understand end-user considerations and see MUOS used at the tactical level. MUOS elevates Marine Corps warfighting capabilities by enhancing long-range, rapid communication and expanding the operational reach of the U.S. Armed Forces. (U.S. Marine Corps Photo by Cpl. Daniel Childs)

U.S. Marine Corps Lance Cpl. Jonathan Bruno, an aircraft avionics technician with Marine Fighter Attack Squadron (VMFA) 311, Marine Aircraft Group 11, 3rd Marine Aircraft Wing, displays VMFA-311 unit patch in front of a F-35C Lighting II at Marine Corps Air Station Miramar, California, Sept. 15, 2023. - U.S. Marine Corps Lance Cpl. Jonathan Bruno, an aircraft avionics technician with Marine Fighter Attack Squadron (VMFA) 311, Marine Aircraft Group 11, 3rd Marine Aircraft Wing, displays VMFA-311 unit patch in front of a F-35C Lighting II at Marine Corps Air Station Miramar, California, Sept. 15, 2023. VMFA-311, the Marine Corps’ second fleet squadron to operate the F-35C Lightning II, is declared “Safe for Flight”. The Safe for Flight certification means that VMFA-311, MAG-11, 3rd MAW, has the maintenance programs, processes, and trained Marines in place to independently conduct flight operations. (U.S. Marine Corps photo by Lance Cpl Samantha Devine)

The newly formed MSB will assume the responsibilities of administrative support to the I MEF Command Element to better posture the I MEF Information Group to focus on leading in the information environment. - Marines with I Marine Expeditionary Force Support Battalion march in formation during the MSB activation ceremony on Camp Pendleton, Calif., April 11, 2018. The newly formed MSB will assume the responsibilities of administrative support to the I MEF Command Element to better posture the I MEF Information Group to focus on leading in the information environment. (U.S. Marine Corps photo by Cpl. Jacob A. Farbo)

Marines and Sailors with 1st Battalion, 11th Marine Regiment, 1st Marine Division, march in the 60th Swallows Day Parade on March 24, 2018. - SAN JUAN CAPISTRANO, Calif. (March 24, 2018) – Marines and Sailors with 1st Battalion, 11th Marine Regiment, 1st Marine Division, march in the 60th Swallows Day Parade on March 24, 2018. The parade is one of the nation’s largest non-motorized parades and is held annually as part of paying tribute to the city’s Spanish and western history. During the parade, the Marines marched in formation and carried their unit colors and the American flag. (U.S. Marine Corps photo by Lance Cpl. Ruth Wheeley)

In 2017, I MEF Marines and Sailors supported more than 140 community events. - Marines and sailors with I Marine Expeditionary Force salute the flag during the San Diego County Credit Union Holiday Bowl National Anthem, Dec. 28, 2017. In 2017, I MEF Marines and Sailors supported more than 140 community events. (U.S. Marine Corps photo by Lance Cpl. Cutler Brice)

Col. Bobbi Shea (right) relinquishes the I Marine Expeditionary Force Information Group colors to Col. Dawn R. Alonso (left) during a change of command and re-designation ceremony at Camp Pendleton, Calif., July 6, 2017. During the ceremony I MEF Headquarters Group was re-designated as I MEF Information Group to support I MEF in the expanding information environment. (U.S. Marine Corps photo by Lance Cpl. Robert A Alejandre) - Col. Bobbi Shea (right) relinquishes the I Marine Expeditionary Force Information Group colors to Col. Dawn R. Alonso (left) during a change of command and re-designation ceremony at Camp Pendleton, Calif., July 6, 2017. During the ceremony I MEF Headquarters Group was re-designated as I MEF Information Group to support I MEF in the expanding information environment. (U.S. Marine Corps photo by Lance Cpl. Robert A Alejandre)