Did you know that the U.S. still stations nearly 50,000 troops in Japan? That's pretty amazing when you think about it. The war in the Pacific ended 66 years ago, and there hasn't been a conflict in Northeast Asia since the Korean War of the early 1950s, but America still maintains a hefty military presence in the area. Another bunch of soldiers are parked nearby in South Korea. Why in the world are all those soldiers still there?