Freedom Bridge crosses the Imjin river. It is a former railroad bridge which was used by repatriated POWs/soldiers returning from the north. Until 1998 was the only point of egress in the western sector other than Libby Bridge (which was controlled by the ROK Army) onto the DMZ, and the only direct link to Camp Greaves, Liberty Bell, and Panmunjom. This is not to be confused with the "bridge of freedom" which is merely an access bridge to the main span that allowed the one way southbound traffic to pass by while northbound traffic stood waiting its turn to cross; it now crosses a stream adjacent to the Imjin river and connects with the North-South railway.