Here's the president talking about NATO expansion:
Obama said reinvigorated ties with Moscow must be "consistent with NATO membership and consistent with the need to send a clear signal throughout Europe that we are going to continue to abide by the central belief … that countries who seek and aspire to join NATO are able to join NATO."
I don't think NATO should expand eastward, but I wouldn't mind if it moved eastward. Let any former Soviet republic join if it wants, I say—but first get the U.S. out of the anachronistic alliance, so we won't be automatically entangled the next time Georgia has a border dispute with Russia. If the French prefer to fight, that's their business.