A military guard post, bottom, and village in North Korea's Kaepoong are seen from a unification observation post near the border village of Panmunjom, the demilitarized zone (DMZ) that separates the two Koreas since the Korean War, in Paju, South Korea, Thursday, Nov. 12, 2009. North Korea threatened South Korea on Thursday after their first naval skirmish in seven years as Seoul expressed confidence it can deter any retaliation from its communist neighbor.
(AP Photo/Lee Jin-man)