By holding out several juicy financial carrots, to Turkey, to Armenia, even to Tehran if it were to abandon its nuclear ambitions, Washington hopes to throw a giant monkey wrench into the attempt of Moscow to retain a significant control over Eurasian energy supplies to the EU, a major lever to ensure more stable EU-Russian relations amid growing threats to Russia's security from Washington's misnamed missile defense shield being built in Poland and the Czech Republic.
Notably, on the latter point, it is worth noting that Obama refused to give an inch during the recent summit talks in Russia. That's because Washington's agenda of geopolitical control over the Eurasian Continent is the only lever of maintaining the hegemony of a failing American Century at this point. Full Spectrum Dominance or none seems to be the motto.
"Full Spectrum Dominance" cannot possibly continue to be supported by an all volunteer army only.
I wouldn't bet against Obama's re-instituting the draft at some point during his term in office to guarantee that his very muscular foreign policy actually has the military "teeth" necessary to back it up.