Europe

Of course. The US has more pokers to put in the fire. They weren't going to be done with Russia after Ukraine. They've prepared several states in the region after spending years training their politicians as obedient dogs and infiltrating them on a societal level. Moldova is a big one because there's Transnitsia there in a similar situation to Ukraine's east, full of comrades who miss the USSR and have a Russian affinity. They already tried with Georgia before and tried again but were defeated. Armenia is a kind of wait and see situation, given Azerbaijan they may not dare do anything and there isn't much of a Russian minority but they're certainly prying them away from the CIS group of states.