what were the steps taken by the allies to gain the upper hand in europe. Please list major battles.?

Answer 1

i think u're talking about ww2? if so, don't forget this one. july 10th, 1943, 180000 soldiers landed on sicily and captured it from italy. then they kept rushing upwards. not really a major battle, but hey, they knocked out Hitler's main fighting partner italy

Answer 2

If by steps taken you mean strategies then the first is that they forced Germany to fight on multiple fronts at once. Between that, the relentless bombing of German cities and industry, and the attrition on the Eastern Front, the Allies wore Germany down. The major battles that impacted the war for the Allies positively in the 2nd half of the war were Stalingrad, Kursk, El-Alemein, D-day, Battle of the Bulge, and the constant Soviet offensives.