At one time, the U.S, Air Force’s now-retired F-22 program was the most-expensive and most-advanced fighter in the world. It was eclipsed only the USAF’s fifth-generation system, the F-35. But even during its development, the United States Congress ensured the U.S. military couldn’t share the technology with anyone – even allies. Yet, American allies were the first to use the more advanced F-35 fighter in combat.
What’s the difference? The $62 billion F-22 programs would have certainly had some of the research and development costs alleviated had the sale of the fighter been approved for American allies, but the Obey Amendment to the 1998 Department of Defense Appropriations Act very specifically prevents the sale of the F-22 Raptor to any foreign government — and they were lining up to buy.