It was called "The war to end all wars," but World War I ushered in revolutions, tyrannical regimes, and an even bloodier global conflict two decades later. The Associated Press marks 100 years since the signing of the armistice.

Canadian Prime Minister Justin Trudeau is in Paris along with dozens of other world leaders to mark 100 years since the end of the First World War — attending a peace forum after a ceremony this morning led by French President Emmanuel Macron amid grey and damp weather, which seemed fitting when remembering a war fought in mud and relentless horror.

Macron warns against nationalism as Trump, other leaders commemorate end of WWI Macron warns against nationalism as Trump, other leaders commemorate end of WWI

As Trump, Putin and dozens of other heads of state listened in silence, French President Macron used the occasion to sound a powerful and sobering warning about the fragility of peace and the dangers of nationalism.

Both the US and Russian presidents arrive separately for the solemn ceremony at the Arc de Triomphe, skipping the bus ride and symbolic walk with other leaders

Macron sends stern message to Trump, others about the dangers of rising nationalism

He has compared the political tone now to the 1930s, saying complacency towards unbridled nationalism then had opened the way for the rise of Hitler.

UK falls silent to remember war dead and mark 100 years since end of WW1 - follow live updates

Remembrance Day services are taking place across Britain and the world to commemorate these killed in the First World War and other conflicts. A hundred years after Armistice Day, the Queen and prime minister will attend a service at the cenotaph before travelling to Westminster Abbey. Events are also taking place in Edinburgh, Glasgow, Enniskillen and other locations across the country.

As world leaders marked the 100th anniversary of the armistice that ended the Great War, President Emmanuel Macron of France declared that “nationalism is a betrayal of patriotism.”

Trump By His Side, French President Macron's Salty Message On Nationalism

President Emmanuel Macron led tributes to the millions of soldiers who died during World War One on Sunday, holding a solemn ceremony attended by dozens of world leaders in Paris to commemorate the centenary of the Armistice.

World leaders gather in Paris to mark end of First World War, to renew promise of peace - National | Globalnews.ca World leaders gather in Paris to mark end of First World War, to renew promise of peace

World leaders with the power to make war but a duty to preserve the peace gathered by the dozens Sunday to mark the end of World War I's slaughter 100 years ago, turning Paris into the epicenter of global commemorations that drove home a powerful message: never again.

World leaders mark 100 years since WWI Armistice in Paris

World leaders gathered in the driving rain in Paris on Sunday to mark 100 years since the end of World War I, with host Emmanuel Macron warning against nationalism at a time of growing strain between Europe and Donald Trumps America.

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Macron snubs US arms in defence spat with Trump Macron snubs US arms in defence spat with Trump

Trump marks 100 years since end of World War I with tribute to fallen soldiers

"It is our duty to preserve the civilization they defended and to protect the peace they so nobly gave their lives to secure one century ago"

100 years after guns fell silent, world’s eyes again turned to Paris

Leaders from around globe gathering in French capital Sunday to pay respects to millions killed in World War I, exactly a century after Armistice ended years of bloodshed