A South Korean soldier walks by displays of mock North Korea's Scud-B missile, back right, and other South Korean missiles at Korea War Memorial Museum in Seoul, South Korea, on Tuesday, Nov. 23, 2010. North Korea shot dozens of rounds of artillery onto a 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)

Photo by: Lee Jin-man

A South Korean soldier walks by displays of mock North Korea's Scud-B missile, back right, and other South Korean missiles at Korea War Memorial Museum in Seoul, South Korea, on Tuesday, Nov. 23, 2010. North Korea shot dozens of rounds of artillery onto a 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)