The 818th Tank Destroyer Battalion was a tank destroyer battalion of the United States Army active during World War II. It first saw combat in July 1944, when it deployed into the Normandy beachhead in preparation for the breakout into France by Lieutenant General George Patton's Third Army. Working closely with the 5th Infantry Division, it moved through northern France up to the Moselle region, where it was involved in the Battle for Metz through September, October and November. In December, it disengaged from defensive positions along the German border and was moved north to fight in the Battle of the Bulge with the 26th Infantry Division. After securing the Allied flanks and mopping up the Bulge, it refitted for two months before fighting south along the Siegfried Line and crossing the