FILE - In this April 4, 2013 file photo, soldiers of the U.S. Army 23rd chemical battalion carry a U.S. and South Korean flag during a ceremony to recognize the battalion's official return to the 2nd ... more 
FILE - In this April 4, 2013 file photo, soldiers of the U.S. Army 23rd chemical battalion carry a U.S. and South Korean flag during a ceremony to recognize the battalion's official return to the 2nd Infantry Division based in South Korea at Camp Stanley in Uijeongbu, north of Seoul. As tensions rise on the Korean Peninsula, one thing remains certain: All sides have good reason to avoid an all-out war. The last one, six decades ago, killed an estimated 4 million people. (AP Photo/Lee Jin-man, File) less 
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Associated Press | Photo By Lee Jin-man, File
Sun, Apr 7, 2013 1:07 AM EDT