Yeah, I know. Russian Troops only, as I deferred above. In my rulebook we have written in “in Red territories only.” The idea of Russian Winter just doesn’t seem to apply when the Russian Infantry is in India or somewhere non-wintry.
However, you could hold on to the NA with its exact functional rules if you changed the name of it to “Propaganda Campaign” …
‘Once during the game in your collect income phase, you can declare a Propaganda Campaign. Until the end of your next turn, your infantry defend on a 3.’
That would work, and could be argued to affect Russian Infantry no matter where they are located.
~Josh