If the United States decides to take a military strike on Syria over the chemical weapons attack, it may have to go without its most steadfast ally.
In a surprising setback to British Prime Minister David Cameron, the lower house of Parliament rejected a motion backing military action in Syria. The vote is non-binding, but Mr. Cameron said he would abide by the results.
He appealed for military action Thursday, telling opponents it is not about taking sides in Syria or toppling its government, but responding to a war crime.
The White House says it will continue consulting with the British, and says President Barack Obama will act in the best interest in the United States.
In Paris, French President Francois Hollande has said his country is ready to punish those responsible for using chemical weapons. But he has not yet said whether the French will join the United States.