Downing Street has insisted that the US special relationship is still intact, despite Britain's MPs voting against military action in Syria.
David Cameron and President Barack Obama spoke on the phone about the Syrian crisis this evening.
In a statement, Downing Street said: "President Obama said he fully respected the PM's approach and that he had not yet taken a decision on the US response."
"They agreed that their co-operation on international issues would continue in the future."
International Development Secretary Justine Greening claimed she missed the crucial vote on Syria because she did not hear the division bell
Britain's place in the world changed with last night's Commons vote on Syria, as David Cameron spectacularly misread his own party.
It was clear the majority of MPs would not be prepared to back unilateral action by the US and Britain. Today we need to make clear why.