The specifics may not be agreed upon; the broad strokes are. There may be a disagreement on the scale of a few kilometers, but the general gist of the borders is widely accepted. There are only a few macro border disputes in the world, like between Egypt and Sudan, and none are in the Caucuses. (except, of course, for the disputed borders of the breakway republics of Nagorno-Karabakh, Abkhazia, and South Ossetia) Unless you know something that I don't about the AZ-GE border being more disputed than I'm portraying.