SOUTH KOREA CIVIL DEFENSE EXERCISE

epa02495861 South Korean combat policeman weara a gas mask during a civil defense exercise on Paju City in Gyeunggi-do, South Korea, 15 December 2010. South Korea staged a nationwide civil defense drill against possible attacks by North Korea as cross-border tensions run high after the North's shelling of a border island last month. EPA/JEON HEON-KYUN