I very much like the overall idea. I think you’re doling out too many infantry in too many different places, and the effect will be disruptive to players’ strategies and will require a lot of bookkeeping.
I would cut the bonuses roughly in half, and apply them to only a handful of specific countries that are relatively easier to remember. I would also limit the bonus to territories that start the game in enemy hands, so you don’t get weird see-saw effects as ownership changes hands.
I like the idea of having Paris yield bonus units rather than ‘re-igniting’ the French economy.
JAPAN
India – 5 infantry
French Indo-China – 1 infantry
Western US – 1 infantry
GERMANY
Ukraine – 2 infantry
Baltic States – 1 infantry
ITALY
Egypt – 2 infantry
USSR
Yugoslavia – 2 infantry
Romania – 1 infantry
Manchuria – 1 infantry
UK
Poland – 2 infantry
Norway – 1 infantry
Holland/Belgium – 1 infantry
USA
Paris – 3 infantry, 1 artillery, 1 fighter
Southern Italy – 2 infantry
Okinawa – 1 infantry