An auxiliary verb, also referred to as a helping verb, is one that is the part of a verb phrase that helps the main verb. As part of a verb phrase, a helping verb might show when an action occurs or whether the action is required. Let's look at a few examples to get a sense of just what auxiliary, or helping verbs, do.
The one reason that the Battle of Barbarossa became a turning point in the war was the number of casualties that the German army suffered. The Russians also suffered a huge number of casualties, but still they were able to hold their ground. The German army failed to push forward and ultimately they had to resort to attacking the United states.
Operation Barbarossa was the key of Victory for the Germans. If Hitler could reach his goals under this operation, he would certainly rule the whole Europe.Also, he would have lots of raw material stock such as oil, coal, etc. on his hands. Then, after finishing the Russians, he could easily deal with the English.he German forces were split into three groups, Army Groups-North, Center and South.   Comment Eradicating Communism (or as he called it, Judeo-Bolshevism) had been Hitler's key aim since 1919. He saw it as his 'mission' in life. Answer: Operation Barbarossa started on 22nd june 1941 and ended on 4th deceber 1941.