Check the listing for details. 391st Fighter Squadron Patch - Plastic Backing, 4". Listed at 14.39 USD. 391st Fighter Squadron Patch - Plastic Backing, 4" A 4" with Plastic Backing/Sew On Squadron Patch of the 391st Fighter Squadron. 4" inches With Plastic Backing/Sew On US Veteran-Owned Business The 391st Fighter Squadron is part of the 366th Fighter Wing at Mountain Home Air Force Base, Idaho. The squadron participated in combat missions in World War II and the Vietnam War, provided air defense in Korea and Japan from 1968 to 1971, and continues to provide tactical air command for the United States Air Force. It currently operates McDonnell Douglas F-15E Strike Eagle aircraft, conducting close air support missions. Mission Perform close air support, interdiction, strategic attack, suppression of enemy air defense, and defensive counterair missions, employing the full array of U.S. Air Force capabilities including precision-guided munitions, inertially-aided munitions, night vision goggles, fighter data link, and Low Altitude Navigation and Targeting Infrared for Night (LANTIRN).