Excellent development of the Normandy landings in June 1944 and following the battle for the reconquest of France by the Allies. The points of view parallel Allies and Germans are systematically presented much help in understanding the war at the time. In particular, the many mistakes made by the staffs (Allied and German) are often presented and analyzed: what would have happened otherwise? In the end, one can only admire the courage of these soldiers. Little-known statistics are also very revealing, as the number of Normans killed on D-Day, for example.