POCHEON, SOUTH KOREA - SEPTEMBER 01: A U.S. M1A2 SEP Abrams battle tank fires live rounds during the United States and South Korean Joint live fire Exercise at Rodriguez Range on September 1, 2011 in Pocheon, South Korea. The U.S. Army 2nd Infantry Division demonstrated the digital and tactical capabilities of its new vehicle fleet at the newly renovated Rodriguez Digital Multi-Purpose Range Complex. United States army conducted a joint live fire operation with South Korean army to prepare for possible aggression by North Korea, which the South has remained technically at war with since the end of the Korean War in 1953. (Photo by Chung Sung-Jun/Getty Images)
