Russia and the United States agreed on Monday to look for a diplomatic end to the Syrian civil war but clashed over the central question of whether Syrian President Bashar al-Assad should retain power.
During a 90-minute meeting, U.S. President Barack Obama and Russian President Vladimir Putin agreed that their armed forces should hold talks to avoid coming into conflict in Syria after a Russian military buildup there over the last several weeks.
The United States, France and allied countries are bombing Islamic State militants, who have exploited power vacuums to seize parts of Syria and neighboring Iraq as part of a stated goal of creating an Islamic caliphate.
The reinforcement of the Russian military presence in the country, including the addition of tanks and warplanes, has brought fears of inadvertent or accidental clashes among the forces as well as U.S. questions about Moscow's main goal.
Speaking after his meeting with Obama, Putin told reporters Russia was pondering what more it could do to support Syrian government and Kurdish forces against Islamic State militants.
"We are mulling over what we would really do extra in order to support those who are in the battlefield, resisting and fighting with terrorists, ISIS (Islamic State) first of all," Putin said, ruling out deploying Russian ground troops.
"There is (an) opportunity to work on joint problems together," Putin said of his talks with Obama, which a U.S. official described as "businesslike."
A senior U.S. official, speaking on condition of anonymity, told reporters after the meeting: "The Russians certainly understood the importance of there being a political resolution to the conflict in Syria, and there being a process that pursues a political resolution."
U.S.-Russian ties have been deeply strained by Moscow's March 2014 annexation of Crimea from Ukraine and its support of pro-Russian separatists in the eastern part of the country.
Earlier in the day, relations between the two leaders appeared frosty - they clinked glasses at a lunch, but Obama had a piercing look as Putin smiled - and they laid out starkly differing positions toward Assad in their addresses before the annual United Nations General Assembly gathering of world leaders.
Obama said he was willing to cooperate with Russia and Iran to try to end the four-year civil war in Syria, in which at least 200,000 people have died and millions have been driven from their homes. But he described Assad as its chief culprit.
In contrast, Putin said there was no alternative to cooperating with Assad's military to fight Islamic State militants, and called for the creation of a broader international anti-terrorist coalition. This appeal may compete with the coalition that the United States has assembled to fight Islamic State.
"The United States is prepared to work with any nation, including Russia and Iran, to resolve the conflict," Obama, who spoke before Putin, told the world body. "But we must recognize that there cannot be, after so much bloodshed, so much carnage, a return to the prewar status quo."
Obama did not explicitly call for Assad's ouster, and he suggested there could be a "managed transition" away from the Syrian president's rule, the latest sign that despite U.S. animus toward Assad it was willing to see him stay for some period of time.
Obama dismissed the argument that authoritarianism was the only way to combat groups such as Islamic State, saying: "In accordance with this logic, we should support tyrants like Bashar al-Assad, who drops barrel bombs to massacre innocent children, because the alternative is surely worse."
Putin differed, suggesting there was no option but to work with Assad, a longtime ally of Russia. "We think it is an enormous mistake to refuse to cooperate with the Syrian government and its armed forces who are valiantly fighting terrorism face-to-face," Putin said in his speech.
"We should finally acknowledge that no one but President Assad’s armed forces and (Kurdish) militia are truly fighting the Islamic State and other terrorist organizations in Syria," he said.
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