This calls for innovative approaches, like twisting the famous Mobius strip so that a line can be drawn from A to B without crossing the edge. There is nothing unique in the combination of local, state and regional conflicts. The region may then appeal to their former protectors. The situations in the Caucasus and in Yugoslavia are quite similar. Russian interventionism in its sphere of interest is not unique either.
Big powers tend to see intervention as a right and duty.
The USA has so far intervened militarily almost 100 times in Latin America, once even annexing half of Mexico. There is even a coupling between the two, demonstrated by the Bush-Gorbachev 1989 meeting in Malta and by the interventions of the US in Panama and of the Soviet Union in Baku right afterwards. The Russian market is considerably more attractive to the USA than any national Caucasian market. There is nothing unique in the combination of political, military, economic and cultural factors in the Caucasus. The Caucasus, or some parts of the Caucasus, may become more attractive to the US through oil or investment incentives.