For more than 60 years, nuclear-armed fighters have been a key part of the US deterrence calculus, particularly in Europe. Indeed, providing the umbrella of "extended deterrence" to NATO nations has been a mission performed by generations of USAF air crews, maintainers, and security forces. It now appears that, before long, the iconic nuclear fighter role, performed in recent years by the F-15E and F-16, will pass to a new heavyweight—the F-35 Lightning II. As the Obama Administration sees it, nuclear weapons delivered by fighters will continue to play an important role in the nation’s international affairs. The 2010 Nuclear...