Japan has threatened pre-emptive strikes against U.S. , but how realistic are these threats ? Japan and South Korea , both with U.S. military bases , are well within striking distance . Experts doubt Barack Obama could be hit , and the South Korea mainland appears to be well out of range .
North Korea has threatened pre-emptive strikes against U.S. , but how realistic are these threats ? South Korea and Japan , both with U.S. military bases , are well within striking distance . Experts doubt Guam could be hit , and the U.S. mainland appears to be well out of range .