PARIS (AP) — Paris, the City of Light, always was the grandest prize of World War I, either to conquer or defend.

So it is only fitting that when victors and vanquished meet to mark the centennial of the armistice this weekend, the biggest ceremony should be on the famed Champs-Elysees at the Arc de Triomphe.

On Friday, some leaders began remembrance events in a wide crescent of cemeteries and trench-rutted battlefields north of the capital.

British Prime Minister Theresa May laid wreaths for the first and last British soldier killed in the fighting — the two were buried across one another nea...