South Korean soldiers man a guard post near the Incheon Bridge (right) in Incheon, South Korea, on Monday, Dec. 27, 2010. North Korea's belligerence is expected to deepen next year as the country undergoes a hereditary transfer of power, with Pyongyang waging more attacks on front-line South Korean islands and possibly conducting a third nuclear bomb test, a state-run think tank in Seoul said in a report posted online Monday. (AP Photo/Yonhap, Lee Jung-hoon)

Photo by: Lee Jung-hoon

South Korean soldiers man a guard post near the Incheon Bridge (right) in Incheon, South Korea, on Monday, Dec. 27, 2010. North Korea's belligerence is expected to deepen next year as the country undergoes a hereditary transfer of power, with Pyongyang waging more attacks on front-line South Korean islands and possibly conducting a third nuclear bomb test, a state-run think tank in Seoul said in a report posted online Monday. (AP Photo/Yonhap, Lee Jung-hoon)