The United States is disturbed by Russia’s movement of tactical aircraft to Syria, US Secretary of State John Kerry said Saturday, acknowledging that the jets could pose a threat to American and allied military forces.

Philip Hammond said the possibility of a fresh vote on British military action in Syria is kept under constant review but indicated the Government has reservations about any involvement by the Federation, a key ally of Bashar Assad’s regime.

At the same time they admit the number of United States trained anti-Assad oppostion forces inside Syria may be as few as five. “That’s what we’re looking for, and we hope Russian Federation and Iran and any other countries with influence will help to bring about that, because that’s what is preventing this crisis from ending”. “We’re prepared to negotiate”, Mr Kerry added.

Hammond and Kerry each emphasized that Assad can not remain in power if there is to be a durable solution to the conflict, but they said the timing of his departure during a political transition in Syria would be a matter of negotiation. “Is Russian Federation equipped to transport him to the figures?” “We’re not being doctrinaire about the specific date or time – we’re open”, Mr Kerry said, adding that President Assad doesn’t have to leave “on day one, or month one”. The decision came on Friday shortly after the Obama administration learned that Russian Federation had begun delivering warplanes, air-to-air and air-to-surface missiles to Syria.

This week’s telephone call between US Secretary of Defense Ash Carter and Russian Minister of Defense Sergei Shoigu strongly indicates this premise.

Now the White House looks ready to accept an offer from Moscow for direct military-to-military talks on the build-up of Russian forces.

Russian Federation has clearly not given any thought to moral factors, such as the hundreds of thousands of victims of the Assad regime, and Putin does not intend to withdraw his support.

“But you will not end the crisis of Syria as long as Assad remains this magnet for people to come in and fight“. It already seems clear that Russian Federation has prevailed over the West in its Syria policy.

Eleven members of that U.S. coalition comprise a group known as the London 11 supporting and arming the rebels fighting Assad for the last five years.

Kerry also said the two nations have to be sure that their separate missions against the Islamic State do not cause an incident between the Russian and American militaries.

Washington, which has led an global coalition carrying out air strikes against IS in both Syria and neighboring Iraq, has repeatedly warned Moscow that bolstering Assad will only make the situation worse. Moscow’s Putin is demonstrating that Russian Federation stands by allies like Syria’s Assad and is more than willing to fill the vacuum of power in the Middle East created by the USA exit from the region. “I think there will be a change in their attitude towards us, via support, or perhaps a political shift”. More than 4 million have sought refuge overseas and more than 7 million are internally displaced, according to the UN.