Dependant on whether the circumstances end up the same as WWII in which Finland had much better statistics:
Finland appear to be well trained. But from a serious standpoint, depending on whether USA have completed there system for destroying nukes on launch another country can gladly jump in. If not then it goes to the UN who create a trade blackout with Russia, meaning Russia need to be self sufficient. Or use the resources from the other countires to feed there whole nation.