It was a terrible crime for which there can be no justification. It was not, however, an act of war. That has been the view of the anti-war movement from the outset. It is an opinion which even a former head of MI5 has recently gone on record as endorsing.

For the US administration of the time, with the British government of Tony Blair in close support, it was however the signal to initiate a war which continues to this day and has cost hundreds of thousands if not millions of lives without justification or gain.

This war has laid waste to Iraq at immense human costs in an aggression without lawful sanction conducted on a basis – to secure non-existent “weapons of mass destruction” – at best specious and at worst mendacious. It imposed on the Iraqi people an illegitimate, bloody and ineptly-administered occupation, which has entrenched sectarianism and failed to produce a functioning government, and which continues to this day.

It has also consumed Afghanistan in a war which has continued long after its initial objective – the removal of al-Qaeda's infrastructure in the country – had been achieved. The occupation seeks to maintain a corrupt and dysfunctional client regime which is an affront to the Afghan people.

The war in Afghanistan has spread to Pakistan, destabilising the state there and raising the dangers of a wider regional conflict involving nuclear-armed powers. And thousands of Libyans have died as a result of a NATO attack ostensibly about protecting civilians but really designed to impose a pro-western goverment on the country.

The “war on terror” has also undermined civil liberties and human rights across the world, from the scandal of state-sanctioned torture to the outrage of Guantanamo Bay. And far from reducing the danger of terrorism worldwide, the war has reinforced all those discontents which can lead to such a response.

Our view, from 2001 onwards, that the war has nothing to do with fighting terrorism but was about projecting US power around the world and in particular extending its control over the resources and peoples of the Middle east and South Asia has been abundantly confirmed.

In all of this the British government has been deeply complicit. The war in Iraq was imposed on the British people by Tony Blair against the wishes of the majority. The government broke international law, ignored the United Nations, connived at torture and other crimes and sent the British Army into two illegitimate and futile wars in which hundreds of soldiers have lost their lives and thousands have been physically or psychologically maimed.

The British people have paid a price for this. Civil liberties and community relations have been placed under great strain. Billions of pounds have been wasted on war. Trust in the honesty and integrity of politicians and our democratic process has been deeply damaged. This is the bill for Tony Blair’s determination to subordinate this country to the foreign policy of the USA.

The Stop the War Coalition takes pride in the movement is has developed against the war since 2001, a movement which has articulated the views of the majority of the British people.

We are proud of our alliance with the Muslim community in Britain, in particular with the British Muslim Initiative (and earlier the Muslim Association of Britain), which has been a source of immense strength and has broadened our political perspectives. Stop the War will continue to stand alongside the Muslim community in resisting the Islamophobia which has been stoked up by the war.

We also salute the brave families of British soldiers who formed Military Families Against the War, an unprecedented political development. Stop the War pays tribute to the school students and trade unionists who walked out against the Iraq war, to our alliance with our sister organisation CND, and to all the hundreds of thousands of people who have campaigned against the war and Britain’s involvement in it.

They have all been the real voice of our country, and have helped redeem its standing in the eyes of the world, so damaged by the actions of Tony Blair and his successors.

On this tenth anniversary of 9/11, Stop the War renews its commitment to continue to oppose the war until it is ended. We demand in particular:

* The full and immediate withdrawal of all British troops from Afghanistan, and support for a political process to end the conflict there.

* An end to NATO bombing in Libya and an end to all interference there.

* The withdrawal of all US troops from Iraq by the end of 2011, as previously agreed.

* No extension of the war through attacks on Iran, military intervention in Syria or elsewhere.

* An unconditional commitment by the British government to abide by international law and the decisions of the United Nations

* An end to the subordination of British foreign policy to that of the USA

* The rejection of Islamophobia and all racist attitudes stoked by the war

* The full defence of civil liberties.