South Korean soldiers at the main train station in Seoul watch a live TV broadcast of South Korean President Lee Myung-bak's New Year's speech to the nation on Monday, Jan. 3, 2011. Mr. Lee said his country has no choice but to aggressively boost its defenses after a deadly North Korean artillery attack, vowing not to let the North "covet even an inch of our territory." (AP Photo/Lee Jin-man)
South Korean protesters shout slogans during a rally denouncing the South Korea's live-fire drills on Yeonpyeong Island, in front of Defense Ministry in Seoul Monday, Dec. 20, 2010. (AP Photo/ Lee Jin-man)
South Koreans wear gas masks during a civil defense drill simulating a North Korean attack near the border city of Paju, South Korea, on Wednesday, Dec. 15, 2010. (AP Photo/Lee Jin-man)
Police officers patrol near houses destroyed by North Korean shelling on the Yeonpyeong Island, South Korea, Friday, Nov. 26, 2010. North Korea warned Friday that planned U.S.-South Korean military drills are pushing the peninsula to the brink of war. (AP Photo/Lee Jin-man)
A South Korean police officer patrols near the destroyed houses on Yeonpyeong Island, South Korea, Thursday, Nov. 25, 2010. (AP Photo/ Lee Jin-man)
South Korean soldiers carry an injured man upon arrival from the island of Yeonpyeong at a military port in Incheon, west of Seoul, South Korea, Wednesday, Nov. 24, 2010. South Korea's troops were on high alert Wednesday as their government exchanged threats with rival North Korea following a frightening military skirmish that ratcheted tensions on the peninsula to new extremes. (AP Photo/ Lee Jin-man)
South Korean survivors arrive as they are surrounded by relatives and media at a port in Incheon, west of Seoul, South Korea, Wednesday, Nov. 24, 2010. South Korea's troops were on high alert Wednesday as their government exchanged threats with rival North Korea following a frightening military skirmish that ratcheted tensions on the peninsula to new extremes. (AP Photo/ Lee Jin-man)
A South Korean man watches a TV screen showing smoking from South Korea's Yeonpyeong island near the border of North Korea, at Seoul train station Tuesday, Nov. 23, 2010. North Korea shot dozens of rounds of artillery onto the populated South Korean island near their disputed western border Tuesday, military officials said, setting buildings on fire and prompting South Korea to return fire and scramble fighter jets. (AP Photo/Lee Jin-man)
South Korean firefighters carry foods as they get on a boat for Yeonpyeong Island at a port in Incheon, west of Seoul, South Korea, Tuesday, Nov. 23, 2010. North Korea shot dozens of rounds of artillery onto the populated South Korean island near their disputed western border Tuesday, military officials said, setting buildings on fire and prompting South Korea to return fire and scramble fighter jets. (AP Photo/ Lee Jin-man)
