Syria's plans were thwarted , the British Parliament on Thursday night narrowly voted against the government 's motion to authorize action principle .
British leaders in Waterloo , Cameron wants to be re-elected in 2015 and re- set the traditionally strong British relations may be damaged by the Parliament despite Cameron 285-272 vote.
Commentator said that this is the first time since 1782 , a British prime minister has lost the war vote.
Immediately after the vote, speak , Cameron told lawmakers that he would not seek to go against the will of Parliament .
"It is very clear tonight , while the House of Representatives has passed a bill , I know , the British Parliament , reflecting the views of the British people do not want to see the British military action - I get , the government will take appropriate action , "he said . "
British Defense Secretary Philip Hammond said he believes a key ally of the United States , will be very disappointed that the UK " will not participate .
He added: " I ??do not expect the participation of the United Kingdom , the lack of will stop any action ." But he told BBC television , " it would certainly put some strain special relationship" , referring to relations with Washington .
U.S. officials have hinted that President Obama might be willing even without the support of its allies limited action against Syria , but no final decision has been reached.
Members with veto power in the UN Security Council draft resolution would authorize the Syrian government response to the suspected poison gas attack "all necessary force " was held inconclusive debate.
Cameron's failure to call , the British military as America's most reliable ally , Cameron worked hard to cement the role of the traditional role and emphasized how bitter British involvement in 2003 the legacy of the war in Iraq is still a decade later .
At that meeting , the United Kingdom , the then Prime Minister Tony Blair 's leadership, to help the U.S. invasion of Iraq asserts - wrong , and later turned out - President Saddam Hussein possessed weapons of mass destruction .
Britain has been involved in Afghanistan, and then being sucked into the quagmire in Iraq, the second and lost 179 soldiers in eight years , in 2003 the United States, the British invasion that toppled Saddam Hussein .
Speaking during the debate on Thursday and sometimes impassioned cliff hanger before the vote , Mr Cameron acknowledged that painful legacy.
"I remember a lesson from previous conflicts, particularly over what went wrong in the country caused the conflict with Iraq in the 2003 's deep concern , " he said.
" One thing is indisputable : the good opinion and truly poisoned Iraqi plot, we need to understand the public's questions ."
Cameron previously pleaded world will not stand idly by Syria alleged use of chemical weapons, but ran into trouble in his own party and the opposition Labor Party voted in favor of military action, asked to see more evidence skeptical lawmakers .
While some critics praised his defeat proved that the British parliamentary democracy is alive and well , others say that he has put him on the line and lost credibility.
Earlier Thursday , Cameron government issued a legal opinion that it is legally entitled to take military action against Syria , even if the UN Security Council does not agree with this action .
It also announced the intelligence material , August 21 civil war in Syria chemical weapons attack , he said , there is no doubt that it has happened, it is " very likely " The Syrian army is responsible . Nerve gas attack that killed hundreds of civilians in the besieged Damascus suburbs.
Failure is more embarrassing Cameron , because he cut short his summer vacation , recalling Parliament urgent debate and the UK National Security Council held a special meeting , as well as numerous calls to Obama and other allies .
Iraq LEGACY toxic
Obama has set up a limited circumstances , a military strike against Syria , but some U.S. lawmakers say they have not been consulted .
Speaking after the vote , the White House said Obama will determine the response to the use of chemical weapons in Syria, based on U.S. interests , however, Washington will continue to consult with the United Kingdom .
British opposition Labour Party leader Ed Miliband , a critic who often criticized politicians like David Cameron as a lightweight opponents , defeat the Prime Minister has played a significant role.
He unexpectedly announced last Wednesday night, he hoped that the Government motion, he can back up important amendments .
Addressing parliament , Miliband struggled to find his composure , but he said lawmakers should not rush to judgment " in other places to set up a political timetable , " a thinly disguised reference to the United States .
At home, Cameron's authority looks depressed . His problem is that he governed part of the alliance of the two parties , the Conservative Party because of his lack of an absolute majority in parliament , revealing that he improvised uprising.
Cameron's critics have been circled . Their main allegations : He is not a conviction politician and not ready for his policy is properly grounded.
But public opinion is never in his side.
? last Thursday YouGov survey showed that only 22% in favor, 51% of the British public against the missile strike.



Other News:
Iraq war ghosts end UK plans to take part in Syria action
Why Wall Street doesn't blink at extra $30 billion for Verizon Wireless
German consumer confidence slips
Stronger US growth may lead Fed to slow bond buys
Vermont Yankee fight brewing: dismantling reactor
Report cites weak NY employment, wage recovery
Dollar rises vs. yen as Syria concerns ease slightly
Indian rupee hurtles lower as foreign investors flee