@mike141500
Any nation can remain neutral if it is not attacked or does not attack first. And a declaration of war by another power is not a declaration of war by the power that is attacked. Even though it would attack the agressor, it is not considered to be aggression. If played badly, USSR could be in great troubles declaring war on all Axis powers by itself. But who knows, you might have a lucky day 🍀
@insanehoshi Always something I haven’t thought of in this game that pops up. I hadn’t really considered hoarding IPP to utilize the lower unit cost that first turn after war starts!
I was going to suggest the same thing as @Noneshallpass too. You can leave a smallish screening force on the borders to prevent any deep penetrations right away. Enough to hopefully make blitzing unrealistic. It might cost you a decent amount of militia, but you can keep your more important units intact that way at least.
I agree that there could be circumstances when it would be very useful to “blitz” into a friendly territory, for instance a surrounded army could want to break through the enemy lines and reach the safety of a friendly territory.
There is nothing that prevents you from having house rules to allow this, but it’s not under the official rules.