Image source, AFP/getty images

That concludes our live coverage of Armistice Day, which has united the UK in honouring those fallen in conflict. Thank you for joining us and for sharing your comments, pictures and memories.

Marian: How about spraying the Tower Moat with real poppy seeds before the ceramic poppies are removed. The disturbance to the ground when removing the ceramic poppies will help the real flowers to grow just as in the Flanders Fields. Hopefully this could give us a display for the next four years and more.

The Met Office have published an article online documenting the important role they played, external during World War One. It says:

By the end of the war forecasters and observers were to be found working in support of the army on every front. Met Office staff worked on the front line predicting changes in the wind that might indicate the risk of the enemy launching gas attacks. Both sides used gas as a weapon during the war and the forecasters also advised on when conditions were right for the allies to launch gas attacks. It was a highly dangerous role.

The role of the Met Office and the importance of weather information and advice to military operations were considered so critical by the end of the war that the Met Office became part of the Air Ministry which ran the Royal Air Force.

tweets, external: I remember the grief from the Great War when my family and my community went to the cenotaph in 1928 to remember our dead #ArmisticeDay

Image source, AP

The poppy field at the Tower of London is a reminder of the powerful role art can play in remembrance, as BBC iWonder shows with its interactive guide.

Image source, David Gilliver

David Gilliver uses a technique, which involves very long exposure times taken at night, to photograph the poppies next to the WWI memorial in Guernsey, the Channel Islands.

Image source, Getty Images

Poppies fall as brokers, underwriters and dignitaries observe the silence at the Lloyd's of London building.

Image source, Getty Images

70 years ago, the D-Day landings marked the beginning of the end for the Nazi occupation across large parts of Europe. BBC iWonder has produced a timeline of the historic event, as well a guide outlining just how close it came to failure.

Image source, MOD

tweets:, external British Defence Attaché lays wreath at Baghdad's neglected Commonwealth cemetery #Remembrance #NotForgotten

Image source, Reuters

Soldiers stand among fallen tissue paper poppies during a service at the Lloyd's Building in the City of London.

Image source, Getty Images

Image source, Getty Images

In Edinburgh, veterans and members of the public paid tribute.

Image source, Susan Pettigrew

Susan Pettigrew took this photo in Armadale, Western Australia.

This year marks the 100th anniversary of the start of World War One, 70 years since the D-Day landings and the end of Britain's conflict in Afghanistan.

Armistice Day has been marked on 11 November every year since 1919 - a year after the Allied forces signed an agreement with the Germans that would end WW1.

After the Second World War, commemorations were adapted to honour the fallen of both conflicts, and Remembrance Sunday was established to replace Armistice Day.

From 1995, the British Legion campaigned successfully to restore the two-minute silence to 11 November as well as Remembrance Sunday.

Elsewhere:

• French President Francois Hollande laid a wreath at the Tomb of the Unknown Soldier, under the Arc de Triomphe in Paris

• A memorial service was held in the Afghan capital Kabul for British servicemen killed there

• In the Belgian town of Ypres there was a special sounding of the Last Post to mark the 100th anniversary of the start of WW1

Here's a reminder of the morning's events:

• Ceremonies have taken place around the UK and further afield to mark the anniversary of the World War One armistice

• In London, a 13-year-old army cadet planted the final symbolic ceramic poppy in the art installation at the Tower of London

• Services were held in military bases, churches and schools, and a two-minute silence was observed at 11:00 GMT

• In London, remembrance ceremonies took place at Westminster Abbey, the Cenotaph and Trafalgar Square

Tom Piper, designer of the poppy installation at the Tower of London, told the BBC he thought the sale of the poppies had raised "at least £1m for each of the six charities".

"I'm very thrilled and honoured that it's had such an impact. I don't think we imagined that it could have [raised this amount] when we set out to do it," he said.

Image source, Anthony Bagga

Anthony Bagga, of Henley College, Coventry took this photo. He said: "Henley College Coventry's Uniformed Services students led our Remembrance Day service this morning in the atrium. Students, staff and nursery children all observed the 2 minute silence. The wreaths laid were made by Uniformed Services students and our nursery children."

How were the traditions of remembrance established? And how have they changed over the years? BBC newsreader Sophie Raworth has put together a timeline looking at 100 years of remembrance.

Richard Storrie: My wife and I visited the hulk of the Bodrog, the ship from which the first shots of the First World War were fired by the Austro-Hungarian river fleet into Belgrade, at 11am local time and observed two minutes silence. The Bodrog is tied up alongside the southern shore of the Danube in Belgrade, quietly rotting away.

Eleanor Thompson: At Oriel College, Oxford, we have held a service beside our war memorial to remember not only the thousands of war dead but especially those undergraduates of the college who served and never returned. Incredibly moving that so many students, staff and tutors came to pay their respects. My great grandfather fought at Gallipoli and on the Western Front, and my great-great uncle was killed exactly a month before the end of the war. I am proud to remember them.