 Along the outside of the memorial are the "Tablets of the Missing", granite slabs on which are inscribed the names of 462 American missing (15 Navy and 447 Army and Army Air Forces) who gave their lives in the service of their country, but whose remains were never recovered or identified.Within the memorial are a chapel, three large wall maps composed of inlaid marble, marble panels depicting combat and supply activities and other ornamental features.Many of the 5,329 people interred at the Ardennes American Cemetery died during Nazi Germany's final major offensive in the west, the Battle of the Bulge.