South Koreans working at North Korea’s Kaesong industrial complex are seen stranded in a waiting room of an office controlling border crossing in Paju on March 9, 2009 following North Korea severing of inter-Korean communications lines used for the passage of people to its Kaesong industrial complex. North Korea put its military on combat alert on 9 March, 2009 as US and South Korean troops began a major joint exercise, and warned that any attempt to block its upcoming satellite launch would spark a war. AFP PHOTO/WON DAI-YEON (Photo by WON DAI-YEON / AFP)