Former French Presidents Francois Hollande and Nicolas Sarkozy attend a national ceremony for the thirteen French soldiers killed in Mali, at the Hotel National des Invalides in Paris, France, December 2, 2019. French soldiers Julien Carrette, Benjamin Gireud, Romain Salles de Saint-Paul, Clement Frison-Roche, Nicolas Megard, Romain Chomel de Jarnieu, Pierre Bockel, Alex Morisse, Jeremy Leusie, Alexandre Protin, Antoine Serre, Valentin Duval, Andrei Jouk died in Mali when their helicopters collided in the dark last week as they hunted for Islamist militants. REUTERS/Charles Platiau