World leaders gather to mark 100 years since the end of World War One

French President Emmanuel Macron, his wife Brigitte, German Chancellor Angela Merkel, Canada's Prime Minister Justin Trudeau, Lithuania's President Dalia Grybauskaite, King Felipe VI of Spain, Denmark's Prime Minister Lars Lokke Rasmussen, European Commission President Jean-Claude Juncker and other heads of states and governments arrive to attend a commemoration ceremony for Armistice Day REUTERS/Yves Herman

John Leicester, Raf Casert and Lori Hinnant

World leaders have gathered to mark the end of World War One 100 years ago, turning Paris into the epicentre of global commemorations that drove home a powerful message: never again.