Although the invasion following 9/11 was in 2001, for Britain the war really started in 2006.
Until then, five members of the forces had been killed in total, three from suicide, accidental firearms discharge and a homicide respectively.
The death toll today is 453; meanwhile about eight million rounds had been fired in combat; and the financial cost of the mission is more than 40 billion ($81.8 billion).
The United States has supplanted Britain as the main combat force in Helmand over the past few years, and the main handover ceremony to the Afghan army's 215 corps was very much an American and Afghan affair.
It was held at Camp Leatherneck, the United States camp adjoining Bastion; the speech by Lieutenant General Joseph Anderson, commander of Regional Command South West, made only a passing reference to the British contribution in the conflict.
It focused instead on those of the Afghan forces and the US Marines.
The senior British officer present, Brigadier Rob Thompson, spoke of the allies helping "Afghanistan get itself back on its feet" and the creation of the "opportunity now for the Afghan leadership to get into the fast lane and move ahead".
As tumbleweed blows through Bastion, and the last of the kit is packed away, we will have to wait and see whether the West, facing a new conflict in Iraq and Syria, keeps its promises to Afghanistan.
- Independent