Refueling Freedom Fighters An F-5A Freedom Fighter receives fuel from a KC-135 tanker over Vietnam, February 1966. Air refueling played an important role throughout the air war over Southeast Asia, with all tactical aircraft sent to the region from the United States requiring air refueling. SHARE: Download: Full Size (0.48 MB) Tags: Vietnam War, Air Force Credit: VIRIN: 090501-F-0304D-004.JPG Photo Gallery