Queen Elizabeth joined veterans of the Afghan war and relatives of those who died, at commemorations in London marking the end of Britain’s involvement.<br /><br /> A service was held at St Paul’s Cathedral, accompanied by military flypast and a procession in London ahead of a reception at Guildhall.<br /><br /> The Prime Minister David Cameron gave a reading from the Bible.<br /><br /> Prince Harry, who did two stints as a soldier in Afghanistan, was among several royals present.<br /><br /> Similar services have been held elsewhere in the UK, in Germany, and in Afghanistan.<br /><br /> Earlier, the Afghan President Ashraf Ghani paid tribute to the 453 UK troops who died, saying they paid the “ultimate sacrifice”.<br /><br /> Many more British soldiers were wounded in the conflict, which began when the US-led coalition invaded Afghanistan to topple the Taliban after the September 11 attacks.<br /><br /> Some relatives of British victims have said much has improved in the country – though one mother of a dead soldier stressed that Afghans were still losi