Maj. Gen. John R. O'Connor, the commanding general of the 21st Theater Sustainment Command, stands next to a war memorial from the Battle of the Bulge during a staff ride Dec. 5. Senior leaders of the 21st TSC participated in the staff ride to learn the history of the Siege of Bastogne from the Battle of the Bulge, apply lessons learned from past battles to use in current application, and build esprit de corps among the participants. (Photo by Staff Sgt. Warren W. Wright Jr., 21st TSC Public Affairs)