From another thread:
Thanks Krieghund, Russia being able to invade neutrals (and how to do it) before its at war w/Euro axis will be a great tool.
One other thing, is Russia (when not at war w/Euro axis) able to pass through Denmark straight?
Yes, if Germany gives its permission.
Interesting. I wonder if the game comes with pre-printed permission slips. 😄
See thread here: http://www.axisandallies.org/forums/index.php?topic=19609.15