Guard posts of South (R) and North Korea (background) are seen from a South Korean observation tower in Paju, near the Demilitarized Zone (DMZ) separating the two Koreas on November 10, 2009. The navies of North and South Korea clashed off the west coast of the peninsula, military officials said on November 10, reportedly leaving a North Korean patrol boat badly damaged. Getty Images logo Getty Images 1 week ago

Guard posts of South (R) and North Korea (background) are seen from a South Korean observation tower in Paju, near the Demilitarized Zone (DMZ) separating the two Koreas on November 10, 2009. The navies of North and South Korea clashed off the west coast of the peninsula, military officials said on November 10, reportedly leaving a North Korean patrol boat badly damaged.