French soldiers patrol in front of the Arc de Triomphe on the Champs Elysees avenue in Paris, France, as part of France's national security alert system "Sentinelle" after Paris deadly attacks November 27, 2015.
REUTERS/Charles Platiau
French soldiers patrol in front of the Arc de Triomphe on the Champs Elysees avenue in Paris, France, as part of France's national security alert system "Sentinelle" after Paris deadly attacks November 27, 2015.