Going into their NATO summit in Wales on Thursday, Western leaders are focusing on a failed policy in Ukraine. And so far, they lack a plan to reverse Russia's aggressive moves to bolster separatists' hold on eastern Ukraine.
Just two weeks ago, Ukrainian troops appeared poised to wrap up a military offensive against Russian-backed separatists who'd been fighting an insurgency since April. But the Ukrainian gains were soon reversed as Russia ignored Western economic sanctions aimed at deterring its support for the separa...
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