Ministers were today accused of having lied to the British public about the threat posed by Iraq's weapons of mass destruction.
Labour delegates called for the withdrawal of coalition troops as Mr Tony Blair's policy came under withering attack at the party conference in Bournemouth.
Veteran anti-war campaigner and Halifax Labour MP Mrs Alice Mahon led the charge with Defence Secretary Geoff Hoon looking on from the platform.
"Our Prime Minister promised President Bush 18 months ago that he would support his war for oil," she said.
"This disastrous route has made the world a much more dangerous world to live in.
"War plans were laid well in advance and we were misled. We were told there were weapons of mass destruction ... that could be activated in 45 minutes.
"The government produced not just one dodgy dossier, but two dossiers and the other one has been exposed by the Hutton inquiry.
"We were lied to about the weapons of mass destruction and there is no delicate way of putting it."
Mrs Mahon said it was a "disgrace" that the conference was being denied a voted on the RMT emergency motion on Iraq.
"There is no hiding place from Iraq," she warned the government. "You live in a bubble here. Outside .... this comes up on every doorstep. It's a most deeply unpopular policy."
She said British troops must be pulled out of Iraq and the UN should replace them. "There's no easy way out of this but we could stop the killing by taking that route."
PA