They walked across the bering strait which was the land bridge at the time this is the theory
Because the soviets had previously signed a Non-Aggression pact with Germany and didn't expect the attack from Hitler (A.K.A Germany.)
Hoped this helped!
What are the following countries...?
It depends. The true definition, with is roughly law without force, then it wouldn't be too bad. Sounds like it would just be a non corrupt world. However, modern day groups like ANTIFA, it would suck. Things have been blown out of proportion honestly to the point where anarchy, or "anti-fascism", almost looks like fascism.