British forces were to launch their official withdrawal from Iraq, a months-long process ending a role that kicked off with the US-led invasion that toppled Saddam Hussein.
British soldiers secure the area following a road side bomb in Basra. British forces were to launch their official withdrawal from Iraq, a months-long process ending a role that kicked off with the US-led invasion six years ago. (AFP Photo)
Senior American, British and Iraqi officers were expected to mark the occasion in recognition of the 179 British soldiers, airmen and sailors who have died in Iraq over the past six years.
"It is the beginning of the drawdown of coalition forces of which Britain has been an integral part," a British officer told AFP.
"Although this is the start of a withdrawal, there is still work to be done and that will continue until the last British soldier has left the country."
Major General Andy Salmon, the senior British officer in Basra, will hand over the southern base to an American commander, in what is a key step towards all foreign troops leaving the country and a full return to Iraqi sovereignty.
The colours of the coalition's Multinational Division South-East, a specially-inscribed Royal Marines flag, will be lowered and replaced with the standard of the US Army's 10th Mountain Division.
Britain, under then prime minister Tony Blair, was America's key ally when president George W. Bush ordered his forces to invade Iraq in March 2003 to overthrow president Saddam.
British troop numbers in the campaign were the second largest, peaking at 46,000 in March and April 2003 at the height of combat operations.
A deal signed by Baghdad and London last year agreed that the last 4,100 British soldiers would complete their mission -- primarily training the Iraqi army -- by June, before a complete withdrawal from the country in late July.
Tuesday's departure begins almost 50 years after Britain's previous exit from Iraq, in May 1959, when the last soldiers left Habbaniyah base near the western town of Fallujah, ending a presence that dated back to 1918.
Relations between London and Baghdad should in theory revert to the same footing as those between other sovereign countries when British troops complete their withdrawal.
The British pullout comes as the US military also steps up preparations to leave Iraq.
Under a US-Iraqi security agreement signed last November, American troops must withdraw from major towns and cities by June 30 and from the whole country by the end of 2011.