@goalievogel:
How do units move from space to space without a non-combat phase? Sorry, I never saw the FAQ!
1. Can the Russians that were being attacked retreat from the territory? Or do they have to stay put?
There are fewer phases in this game.
Purchase
Move
Combat
Deploy purchases
Naval changes things up a little, and Air power adds in some twists, but in general that’s all there is.
You cannot retreat after combat (in the same turn) as there is no non-combat movement phase. You have to wait until your next movement turn to retreat any of your land based units (including fighters).
All of these rules are very well spelled out in the book (minefields, movement, transports + planes, etc) though it MAY require 2 or more readings to understand how they all interact as not everything is laid out in a simple format.