It's the first new American bomber aircraft in more than 30 years. It's part of efforts to modernize all three legs of a nuclear triad, alongside nuclear missiles and submarine-launched warheads.
A U.S. firebombing campaign targeted Toyama and other Japanese cities, killing 180,000 before the atomic bombings of Hiroshima and Nagasaki, write geographer Cary Karacas and historian David Fedman.