A Marine Corps unit based at Camp Lejeune, which has suffered the highest casualty rate of any in Marine Corps history, is headed back to combat. It's all part of the President's surge plan to put thousands more troops in Iraq. It meant the re-activation Wednesday of the historic First Battalion 9th Marines, which earned the nickname the "Walking Dead," after service in World War I and II and the Vietnam War. Veterans of the unit joined current Marines to begin this new chapter. The current force will deploy to Iraq in the coming months.