VMF-115 was organized on 1 July 1943 at Santa Barbara, California under the command of Major John S. MacLaughlin. Sixteen days later, the command was assumed by one of the Marine Corps' most famous Aces, Major Joseph Foss, holder of the World War II Marine Corps record of twenty-six enemy aircraft shot down. The squadron quickly picked up the nickname, "Joe's Joker's." In May 1944, the squadron joined the Pacific campaign flying the legendary F4U-1 Corsair.
At the conclusion of World War II, the squadron deployed to Peking, China to protect US interests in that area and support the III Marine Amphibious Corps supervising the surrender and repatriation of 630,000 Japanese troops and civilians in North China.
In December 1949, VMF-115 became the first Marine Corps squadron to receive a full complement of Grumman F9F-2 Panther jet fighters and, during November 1950, was first to serve aboard a carrier, qualifying all 18 pilots without incident aboard the USS Roosevelt. In February 1952, VMF-115 deployed to K-3 Airfield near Pohang, Korea for combat operations. VMF-115 provided decisive Close Air Support during several battles including the famous withdrawal at the Chosin Reservoir.