South Korean policemen participate in an anti-chemical and anti-biological terror drill as part of the '2008 Ulchi Freedom Guardian (UFG)', at the Galsan subway station on August 19, 2008 in Incheon, South Korea. The UFG exercise is a regular joint exercise between South Korean and U.S. troops in preparation for an emergency on the Korean Peninsula. By Chung Sung-Jun/Getty Images.

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