Fritz X
By the time of the Normandy landings, a combination of Allied air supremacy (keeping the Luftwaffe's bombers at bay) and ship-mounted jammers meant Fritz X had no significant effect on the invasion fleet. Some accounts report the Norwegian destroyer was hit by Fritz X at dawn on D-Day. This is unlikely as III./KG 100, the unit which carried the Fritz X into combat, had largely been re-equipped with the Hs 293 by that time for its anti-ship missions, and the attack on "Svenner" occurred before the first glide bombers launched their assaults on the Normandy beaches.