See the different ways the nation remembered people who've fought and died at war.
A two-minute silence is always held at 11am on the 11th day of the 11th month, to mark the moment World War I ended. 2011 was extra special because for the first time since the appeal began, it was held on 11.11.11.
A wall in Scarborough, North Yorkshire is painted by a street artist. Members of the Royal British Legion, the charity that gives money to people affected by war, said they thought the grafitti was "absolutely amazing".
On Sunday Chelsea Pensioners, some of the oldest veterans still alive, march past the Cenotaph in central London. For many veterans like these, it was compulsory to be 'called up' to serve in the armed forces in World War II.
11am on Friday - the nation comes to a standstill. Crowds in central London stand to remember those lost in war. Many others do the same across the UK.
A place that's normally buzzing with activity, Canary Wharf in London. These people stop what they are doing to pause silently for two minutes.
On Sunday in Spean Bridge in Scotland, people gather round a war memorial as their act of remembrance. The soldiers on the right are part of the statues on the memorial.
At London's Trafalgar Square on Friday, as thousands of people prepare to mark the two-minute silence at 11am, school pupils place poppies in the waters near the famous fountains.
Schoolchildren visit war memorials and museums to learn about Armistice Day - 11th November. In this picture Keiran, Molly and Ellis bring a wreath from their primary school to leave at the National Memorial Arboretum in Staffordshire.
Members of the armed forces serving overseas also hold services to mark Remembrance Sunday. These soldiers stand in Helmand Province in Afghanistan.
On Sunday many attend special services around the UK. At the Cenotaph, the big war memorial in London, the Royal Family and the Prime Minister attend along with thousands of people. Prince William is one of several members of the Royal Family to lay a wreath.
On Saturday - England's James Milner plays at Wembley in a friendly against Spain, which England won 1-0. The people in charge of international matches, Fifa, allowed national team players to wear poppies on their armbands after Prince William wrote to them.
Every November the nation remembers those who have fought and died for their country. The events take a lot of preparation, like cleaning the war memorials. Each panel on this one has the name of a person who died.