U.S. Marine Corps Lance Cpl. Alonso Guillen and U.S. Marine Corps Lance Cpl. Spencer Kirkwood, Low Altitude Air Defense gunners with 3rd Low Altitude Air Defense Battalion, Marine Air Control Group 38, 3rd Marine Aircraft Wing, use a Stinger Field Handling Trainer to practice tracking targets during exercise Steel Knight 23, on San Clemente Island, California, Dec. 6, 2022. 3rd LAAD provided close-in air defense to artillery positions for 1st Battalion, 11th Marine Regiment, 1st Marine Division. Exercise Steel Knight 23 provides 3rd MAW an opportunity to refine Wing-level warfighting in support of I Marine Expeditionary Force and fleet maneuver. Guillen is a Longmont, Colorado, native and Kirkwood is an O’Fallon, Illinois, native. - U.S. Marine Corps Lance Cpl. Alonso Guillen and U.S. Marine Corps Lance Cpl. Spencer Kirkwood, Low Altitude Air Defense gunners with 3rd Low Altitude Air Defense Battalion, Marine Air Control Group 38, 3rd Marine Aircraft Wing, use a Stinger Field Handling Trainer to practice tracking targets during exercise Steel Knight 23, on San Clemente Island, California, Dec. 6, 2022. 3rd LAAD provided close-in air defense to artillery positions for 1st Battalion, 11th Marine Regiment, 1st Marine Division. Exercise Steel Knight 23 provides 3rd MAW an opportunity to refine Wing-level warfighting in support of I Marine Expeditionary Force and fleet maneuver. Guillen is a Longmont, Colorado, native and Kirkwood is an O’Fallon, Illinois, native.