Russia, US seek to extend Syria truce but aid blocked, violence spreads
The second attempt this year by the cold war-era superpower foes to halt the conflict has succeeded so far in curbing the fighting, but it remains a risky gamble in a war that has made a mockery of all previous peace efforts.
Washington and Moscow, which support opposite sides in the war between President Bashar al-Assad and insurgents, have agreed to share targeting information against jihadist fighters that are their common enemies, if the truce holds.
Although the details of the pact remain secret, that could see them wage war on the same side for the first time since the second world war. But such unprecedented cooperation would come at a time of deep mistrust between the two countries, whose relations are at their worst for decades.
Russia said on Friday that UN Security Council endorsement of the ceasefire, which Moscow hoped would occur next week during an annual UN meeting of world leaders, appeared unlikely because the United States did not want to share documents detailing the agreement with the 15-member body.