Step aside Obama…..

Russian officials have demanded that American warplanes exit Syrian airspace immediately, a senior U.S. official told Fox News early Wendesday.

The official told Fox News that Russian diplomats sent an official demarche ordering U.S. planes out of Syria, adding that Russian fighter jets were now flying over Syrian territory. U.S. military sources told Fox News that U.S. planes would not comply with the Russian demand.

“There is nothing to indicate that we are changing operations over Syria,” a senior defense official said.

“We have had every indication in recent weeks that (the Russians) were going to do something given the build-up,” another defense official added.

The move by Moscow marks a major escalation in ongoing tensions between the two countries over military action in the war-torn country and comes moments after Russian lawmakers formally approved a request from the country’s president, Vladimir Putin, to authorize the use of troops in Syria.

The Russian demand also mirrors one made by Turkey this past July, when Ankara asked U.S. planes to fly only in airspace south of Mosul, Iraq. In that case, 24 Turkish jets bombed Kurdish positions, catching the U.S. off guard.

The Federation Council, the upper house of Russia’s parliament, discussed Putin’s request for the authorization behind the closed doors. Sergei Ivanov, chief of Putin’s administration, said in televised remarks that the parliament voted unanimously to approve the request.

Ivanov said the authorization is necessary “not in order to achieve some foreign policy goals” but “in order to defend Russia’s national interests.”

Putin is obligated to request parliamentary approval for any use of Russian troops abroad, according to the Russian constitution. The last time he did so was before Russia annexed Ukraine’s Crimean Peninsula in March 2014.

Putin’s request comes after his bilateral meeting with President Barack Obama on the sidelines of the United Nations General Assembly meeting in New York, where the two were discussing Russia’s recent military buildup in Syria.

A U.S. official told Fox News Monday the two leaders agreed to discuss political transition in Syria but were at odds over the role that Assad should play in resolving the civil conflict. The official said Obama reiterated to Putin that he does not believe there is a path to stability in Syria with Assad in power. Putin has said the world needs to support Assad because his military has the best chance to defeat ISIS militants.

Putin said the meeting, which lasted a little over 90 minutes, was “very constructive, business-like and frank”.

“We are thinking about it, and we don’t exclude anything.” Putin told reporters at the time