Military officer Garcia plays the original Armistice bugle from 1918 under the Arc de Triomphe Sunday, Nov. 11, 2018 in Paris. More than 60 heads of state and government are in France for the Armistice ceremonies at the Tomb of the Unknown Soldier in Paris on the 11th hour of the 11th day of the 11th month, exactly a century after the armistice. (AP Photo/Francois Mori, Pool)
A member of the French Republican Guard stays at attention in front of the centenary logo referring to the WWI during a ceremony the Arc de Triomphe in Paris, France, as part of the commemorations marking the 100th anniversary of the 11 November 1918 armistice, ending World War I, Sunday, Nov. 11, 2018. (Ludovic Marin/Pool Photo via AP)
French President Emmanuel Macron re-lights the eternal flame at the Tomb of the Unknown Soldier during a commemoration ceremony for Armistice Day, 100 years after the end of the First World War at the Arc de Triomphe in Paris, Sunday, Nov. 11, 2018. (Benoit Tessier/Pool Photo via AP)
PARIS — A hundred years later, their words can still pierce hearts. Fighters writing home from opposing front lines of World War I, a Chinese laborer marveling at the war’s end, a woman dreaming of reuniting with her soldier love.