The Obama administration appears to be pressing ahead with military strikes on Syria despite new obstacles at home and abroad. On Wednesday, an informal meeting of the United Nations Security Council failed to reach an agreement after Russia and China opposed any authorization of force in response to last week’s alleged chemical attack in Ghouta. Obama administration officials say they now see little point of going through the United Nations. The United Nations is also facing resistance from its closest ally, Britain. After domestic pressure, British Prime Minister David Cameron announced he will seek parliamentary authorization for using force against Syria, and only after U.N. inspectors complete their current mission. Meanwhile in Washington, the White House plans to brief lawmakers today following growing calls that President Obama seek congressional backing for any use of force.