NATO leaders emerged from a summit in Wales with a plan to protect eastern members from a resurgent Russia, a pledge to reverse the decline in their defense spending, and an embryonic Western coalition to combat Islamic militants in Iraq.
Yet despite ringing declarations of resolve, the U.S.-led alliance cannot fix the conflict between Ukraine and Russian-backed separatists, and the West is still a long way from having a strategy to defeat Islamic State insurgents in Iraq and Syria.
The Cold War era military organization may have reasserted its relevance just as its costly decade-long operation to stabilize Afghanistan draws to an inconclusive end.
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