After helping to protect the Pusan perimeter, Hoskins and his carrier division were instrumental in the success of Douglas MacArthur's end-around amphibious assault on Inchon a month later. On September 4, fighters of "Valley Forge's" Fighter Squadron 53 (VF-53) shot down a Soviet Air Force A-20 Havoc bomber after it opened fire on them while flying towards the gathering naval task force in the Yellow Sea. During the invasion at Inchon from September 14 until September 19, Hoskins's Air Group 5 made hundreds of daily strikes on enemy targets. Between July 3 and November 19, "Valley Forge" aircraft flew 5,000 sorties and delivered 2,000 tons of rockets and bombs.