After international summits end, there is always a collective sigh of relief. So it was with the NATO meeting in Wales that ended on September 5.

All NATO leaders got something out of the Euro-Atlantic gathering, even if it wasn’t what they had wanted during the run-up to the summit. There were reassurances for NATO’s Eastern European members and promises of technical assistance to Ukraine and of closer cooperation with Georgia, Moldova, Montenegro, and Macedonia. And there were pledges from a group of allies to support Washington in dealing with the rapid advance of the Islamic State (IS).