French police stand guard in front of the Paris courthouse on the Ile de la Cite ahead of the opening of the trial of the November 2015 Paris attacks in Paris, France, September 7, 2021. Twenty defendants will stand trial over Paris' November 2015 attacks from September 8, 2021 to May 25, 2022, with nearly 1,800 civil parties, more than 300 lawyers, hundreds of journalists and large-scale security challenges. REUTERS/Eric Gaillard