Complete the following sentence: Due to the invasion of Sweden, Operation Barbarossa gets delayed by three weeks, giving Stalin time to organize a better defense, bringing the German downfall sooner.<unk> Due to the invasion of Sweden, Operation Barbarossa gets delayed by three weeks, giving Stalin time to organize a better defense, bringing the German downfall sooner. The Allied invasion of Normandy occurs in the spring of 1944 rather than in June.<unk> The Allied invasion of Normandy occurs in the spring of 1944 rather than in June. Hitler commits suicide in December 1944, and World War II<unk> Hitler commits suicide in December 1944, and World War II<unk>
in Europe ends on December 28. <unk> <unk> <unk> <unk>