This site "contains maps showing troop positions beginning on June 6, 1944 to July 26, 1945. Starting with the D-Day Invasion, the maps give daily details on the military campaigns in Western Europe. ... Some of the sheets are accompanied by a declassified 'G-3 Report' giving detailed information on troop positions." Also includes an interactive essay about the Battle of the Bulge. From the American Memory project at the Library of Congress.