What mistake do hitler made on Operation Barbarossa when he turned his back on them

Hitler’s mistakes #1. His major mistake was to attack Russia on the eastern front in June, 1941 in Operation Barbarossa. ... 2. In the Battle of Britain, the fact that the German fighters did not have the capability to protect their bombers all the way to Britain and back spelled defeat ... 3. The major success of the German “blitzkreig” was the traversal of the Ardenne forests in 1939 to outflank the Maginot Line that defended France. ... 4. The distraction during the war of using perhaps a million men involved in the campaign to eradicate the Jews of Europe undoubtedly reduced the capacity of the German forces ... 5. The Germans were perhaps not aware of the Japanese secret attack on Pearl Harbor on Dec 7, 1941. This was a major mistake in that it gave Pres. ... 6. In the battle for Stalingrad, 1942-3, Hitler showed characteristic disdain for the lives of his soldiers. He ordered Gen. ... 7. The main tank battle of WWII, the Kursk salient in July 1943, was won by the Russians because the Germans failed to realize that they were being surrounded in

Explanation:

there is no image for me to refer

answer; (d) i believe that the correct answer is americans finally ran out of ammunition;