while Moscow and Washington both sounded downbeat about the prospects of a diplomatic push to end the conflict after talks.
What would a negotiated end look like? Everything would go back to the way it was with Assad able to move around killing the now former rebels with impunity. The only ones who would want a negotiated settlement would be the ones who are losing. They would use the time to fix their problems and then resume the killing.
Washington, Moscow, sometimes you just have to let the patient heal himself.
Negotations never end a war. Look at Korea and Isreal. Defeat, of one side or the other, is the only way to end a war.