1. My mistake on that. I usually call it one or the other. Technically it the USSR. So whoops.You are confusing Russia with the Union of the Soviet Socialist Republics.
Just no.
On what date exactly do you think Germany invaded the USSR?
2. It did help them regroup. Though some of it was due to the Axis part.
3. Also again, while trying to do my best to research things. I do slip up on some things. What else you want me to say?