Gen. Martin E. Dempsey (right), the 37th chief of staff of the Army, hosts a relinquishment of command and retirement ceremony May 3, 2011, for Lt. Gen. Robert L. Van Antwerp, chief of engineers and commanding general of the U.S. Army Corps of Engine...

Gen. Martin E. Dempsey (left), the 37th chief of staff of the Army, presents the Distinguished Service Medal to Lt. Gen. Robert L. Van Antwerp, chief of engineers and commanding general of the U.S. Army Corps of Engineers, during his retirement cerem...

Gen. Martin E. Dempsey (left), the 37th chief of staff of the Army, presents the Distinguished Service Medal to Lt. Gen. Robert L. Van Antwerp, chief of engineers and commanding general of the U.S. Army Corps of Engineers, during his retirement cerem...