You may have something there; I can well remember what were called the "Brushfire" wars in the 60s and especially the 70s, when one superpower or the other was attempting to prevent the other from taking over a country; the ones I remember most were Vietnam, of course, Angola and Mozambique. Isn't what's going on in Yemen now a sub-regional proxy war between Saudi and Iran, with the Western "powers" backing Saudi? Something similar could be said about Syria, where the USA in particular is attempting regime change, and the Russians are backing the government, due to their naval base. Although they are on opposite sides, as it were, the superpowers seem to be taking every precaution to avoid a direct contact, since no-one in their right minds wants to start World War 3 - do they? Given the way the Great War escalated from a minor sub-regional incident, they must be treading a very precarious path indeed.