Russia’s ability to leverage its intervention in Syria into any sort of ongoing advantage on the world stage may be starting to wane with the current cease-fire deal still in shambles.Cracks in Moscow’s strategy, some U.S. officials suggested, began showing Wednesday during a high-level meeting of the United Nations Security Council, when U.S. Secretary of State John Kerry blasted Russia for repeatedly changing its explanation about an attack on an aid convoy that killed 20 people.
