What happens at the arc de triomphe everyday?

Everyday at 18:30, the Eternal Flame at the foot of the Arc, Champs-Elysées side, is rekindled. There is the Tomb of the unknown soldier (French: le tombeau du Soldat Inconnu). A comittee is in charge of the Flame, which might be rekindled by vets, but also by schoolchildren, associations, etc...

Tha ceremony was held even under German occupation during WWII.