A U.S. Air Force U-2 spy plane prepares to land at Osan Air Base in Pyeongtaek, South Korea, Tuesday, April 25, 2017. South Korea's military said Tuesday that North Korea held major live-fire drills in an area around its eastern coastal town of Wonsan as it marked the anniversary of the founding of its military. (Photo by Hong Hae-in/Yonhap via AP Photo)
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