World war 1
100 years since the Treaty of Versailles that ended World War I
Signed at the Palace of Versailles outside Paris, the text set out 440 punishing articles that crippled Germany economically and morally.
The first peace treaty of the conflict, it was agreed between Russia - which had sided with the Allies - and Germany and other members of its Central Powers coalition.
Violence is raging in the Middle East, Europe and Russia are poised on the edge of conflict over Ukraine.
Trump, Vladimir Putin, Angela Merkel and dozens of monarchs, princes, presidents and prime ministers joined Macron to mark the moment the guns fell silent across Europe 100 years earlier.
After church bells rang out across France, the leaders sat together at the Tomb of the Unknown Soldier at the Arc de Triomphe for a memorial that included a performance by star cellist Yo-Yo Ma and the reading aloud of letters by WWI soldiers.
Posters calling on troops to head to the trenches hang on the walls, next to figurines carved out by soldiers in the trenches from bullets and shells.
Every year after Christmas, thousands gather in the village of Makapanstad in South Africa’s North West province to honour the African soldiers who served in World War I. This age-old tradition is called Diturupa and it's traced back to a time after World War I.
As recently as the mid-19th century, the world was divided into empires, city states and fledgling nation states.
Today marks exactly a century since the ship carrying hundreds of black South African troops sank in the English Channel.
Britain observed 2 minutes' silence, marking the time fighting ended on the Western front of World War One on 11 November 1918.
The service is in memory of those who fell in defence of their country during all wars.