Britons joined in silence to honour those who made the ultimate sacrifice at services across the United Kingdom and abroad.
Millions across the UK fell silent in tribute to those lost in war, standing in a moment of quiet contemplation as history was remembered.
The Queen led the nation in observing a two-minute silence to pay tribute to fallen military servicemen and women for Remembrance Sunday.
The Queen and the Duke of Edinburgh will attend the Royal British Legion Festival of Remembrance tonight as the nation begins three days of honouring those who have lost their lives in conflicts past and present.
Other members of the Royal Family will also be present for the event at the Royal Albert Hall, which will feature performances from pop stars James Blunt - a former army officer - and Katie Melua, plus the tenor Alfie Boe and new group the Poppy Girls.
The audience of 4,000, including Legion supporters and military families, will be joined by an estimated 5.2 million viewers on television.
Very moving to be out on Horse Guards Parade, meeting veterans. And grandchildren here to honour their grandparents' service.
Sunderland FC have confirmed winger James McClean chose not to wear a Remembrance Day poppy on his shirt in yesterday's Premier League game against Everton, ITV Football has reported.
The Northern Ireland-born Republic of Ireland international's decision sparked a flurry of Twitter activity, with some users condemning the 23-year-old and others coming out in support of his right to choose.
The Prince of Wales and the Duchess of Cornwall attended a Service of Remembrance at the cenotaph in Auckland in New Zealand during their Diamond Jubilee tour of the region.
Taoiseach Enda Kenny, has attended a Remembrance service in Enniskillen, Northern Ireland.
The symbolic visit came as the Co Fermanagh town marked the 25th anniversary of the IRA Poppy Day bomb attack, which claimed the lives of 12 people.
Mr Kenny laid a laurel wreath at the cenotaph, only yards from where the no-warning blast detonated 25 years ago.