From the BBC an excellent collection of resources on WWI to help students learn about World War I. The materials are sorted into a section for elementary and high school students.
Every year on Nov. 11 at 11 a.m. — the hour and the day of the 1918 armistice — villagers gather to participate in a short memorial service around the obelisk.
verisimilitude
I think this is the key behind the enduring obsession with that war.