Mark Field

Marine Air Control Squadron 4 (MACS-4) is a United States Marine Corps aviation command and control unit that was originally activated during World War II in 1944. The squadron has a storied history, providing air surveillance, air traffic control, and air defense capabilities in support of Marine Corps operations. MACS-4 played significant roles during the Korean War, Vietnam War, and has participated in numerous exercises and operations throughout the Asia-Pacific region. Today, MACS-4 remains a key component of the 1st Marine Aircraft Wing, supporting expeditionary air operations and enhancing the Corps' ability to control the battlespace.

Marine Air Control Squadron 5 (MACS-5) was a United States Marine Corps aviation command and control unit. Activated during World War II, the squadron provided aerial surveillance, airspace management, and early warning capabilities for Marine aviation operations. Throughout its history, MACS-5 supported various exercises and deployments, contributing significantly to the Marine Corps’ air defense missions. The unit was eventually deactivated as part of post-Cold War force reductions, but its legacy remains in the advancements it brought to Marine Corps air command and control systems.