This year's Armistice Day events have special significance because 2014 is the centenary of the start of World War One. 11 November 2014 marks the 96th anniversary of the signing of the Armistice that ended the war.

armistice day
A member of the armed forces with prosthetic legs pays his respects at the Armed Forces Memorial in the National Memorial Arboretum near Lichfield, StaffordshireOli Scarff/AFP
armistice day
A poppy sits in the hand of a statue at the Armed Forces Memorial during Armistice Day commemorations at the National Memorial Arboretum in AlrewasPhil Noble/Reuters
armistice day
Crosses bearing a poppy are placed at the base of a statue at the Armed Forces Memorial in the National Memorial ArboretumOli Scarff/AFP
armistice day
Poppy wreaths cover the road at the base of the Cenotaph in LondonAndrew Cowie/AFP
armistice day
Poppies fall during a two-minute silence at a Remembrance Day service at the Lloyd's of London buildingCarl Court/Getty Images
armistice day
Royal British Legion members await the start of the Armistice Day service in Aylesford, KentGetty
armistice day
Defence secretary Michael Fallon lays a wreath during the Armistice day service at the Royal British Legion village in Aylesford, KentGetty
armistice day
Crosses are placed in the garden of remembrance in Princes Street, EdinburghJeff J Mitchell/Getty Images
armistice day
Former Royal Engineer Robert Mackenzie joins veterans and members of the public to pay tribute to those who died during the two World Wars and subsequent conflicts at the garden of remembrance in EdinburghJeff J Mitchell/Getty Images

Thousands of people gathered at the Tower of London, where a blood-red sea of ceramic poppies has spilled into the moat as part of an art installation paying tribute to soldiers killed in the fighting.

A 13-year-old army cadet, Harry Hayes, planted the final poppy — the last of the 888,246 flowers — one for each of the British and Commonwealth soldiers killed in the war. Among the dead was Hayes' great-great-great uncle, Pvt. Patrick Kelly of the 1st Battalion, Irish Guards.

armistice day
Harry Hayes, 13, from the Reading Blue Coat School Combined Cadet Force, salutes after planting the final poppy at the Blood Swept Lands and Seas of Red installation at the Tower of LondonJustin Tallis/AFP
armistice day
Sir Richard Dannatt reads the names of the fallen during a ceremony in which the last ceramic poppy was placed in the moat of Tower of LondonPeter Macdiarmid/Getty Images

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

He then headed to Notre-Dame-de-Lorette for the official inauguration of a giant new war memorial engraved with the names of the 580,000 men who lost their lives in northern France during the First World War. Names are listed alphabetically without regard to their nationalities or ranks.

armistice day
French President Francois Hollande prepares to lay a wreath at the Tomb of the Unknown soldier under the Arc de Triomphe in ParisAFP
armistice day
French President Francois Hollande pays his respect to the unknown soldiers in the crypt of the Notre-Dame-de-Lorette basilica in northern FranceAFP
armistice day
A French veteran holds a flag during Armistice Day ceremonies in LyonAFP