11 November 2012
Last updated at 10:10 ET
Events have been held across the UK and beyond to remember service personnel who died in world wars and other conflicts. People of all ages placed crosses of remembrance on the war memorial on the high street of Royal Wootton Bassett, the Wiltshire town which has become associated with the repatriation of fallen service personnel.
The Queen led dignitaries honouring the UK and Commonwealth's war dead at the annual remembrance event at the Cenotaph, in central London. She laid a wreath, and then the Duke of Edinburgh laid his own tribute.
Sophie, Countess of Wessex, and Catherine, Duchess of Cambridge, were among the royals who joined the Queen and the Duke of Edinburgh at the Cenotaph event.
Thousands of former military personnel - men and women veterans in civilian clothes - lined the street up and down Whitehall in London. Many wore their medals and cap badges from their time in service.
Past and present political leaders also gathered at the Cenotaph to pay their respects. Prime Minister David Cameron, Labour leader Ed Miliband and former prime ministers Tony Blair and Sir John Major were among those who attended.
Chelsea Pensioners were among the veterans who paraded by the Cenotaph, wearing Poppies on their lapels - the symbol of remembrance.
Elsewhere, British troops serving in Helmand Province, Afghanistan paid tribute at their own ceremony at their headquarters in Lashkar Gar. Others attended services at remote patrol bases or checkpoints.
War veteran standard bearers in Malta raised their flags after two minutes of silence during a Remembrance Day memorial service at the War Memorial cenotaph in Floriana, on the outskirts of the capital Valletta.
Canadian Prime Minister Stephen Harper (front left), took part in a Remembrance Day ceremony at Sai Wan War Cemetery, in Hong Kong.
The sacrifice of armed forces personnel was also marked it the world of sport. Australian cricketers stood for a minute-long silence to honour Remembrance Day during day three of their test match against South Africa.