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The Battle of Britain was an air campaign fought throughout Southern Europe during the summer and autumn of 1940. It started specifically on July 10, 1940. This was an strategy that Germany planned to gain air superiority in order to prepare for an invasion of Great Britain. -
Operation Barbarossa was an invasion of the Soviet Union during WW2 that was launched by Germany, in June 22, 1941. It was initiated by Adolf Hitler, and although the strategy was successful at the beginning, due to harsh weather conditions and many strategic inabilities, and also the resistance and attacks of the Soviet Union, the campaign ended up failing.
https://www.history.com/topics/world-war-ii/operation-barbarossa -
It was an invasion initiated on November 8, 1942 by French Morocco and Algeria during the North African Campaign of World War 2. It was an Anglo-American invasion, and it was performed with the intention to withdraw Axis forces far away from The Eastern Front, and also relieving pressure for The Soviet Union. The operation was finally ended on November 16, 1942.
https://encyclopedia.ushmm.org/content/en/article/operation-torch-algeria-morocco-campaign -
Operation Overload was a German invasion that occupied all throughout Western Europe during The World War 2. It was successfully launched on June 6, 1944. It was thought that the invasion would end the war quickly and it became known as the largest invasion force in human history.
https://en.wikipedia.org/wiki/Operation_Overlord
https://www.eisenhowerlibrary.gov/research/online-documents/world-war-ii-d-day-invasion-normandy -
The Yalta Conference was a meeting conducted for three WW2 allies, which included, the US President, British Prime Minister, and Soviet Premier. The three of them met up at a resort for the first time along the Black Sea coast located in Yalta. They had various discussions concerning the fate of Germany due to the defeat of the post-war, the terms of the Soviet. The Conference started on February 4, 1945 and ended on February 11, 1945.
https://www.history.com/topics/world-war-ii/yalta-conference