In this Saturday, March 19, 2016 file picture, French Army Chief of Staff, General Pierre de Villiers, arrives at the Elysee Palace to attend an emergency security meeting in Paris, France. (AP Photo/Kamil Zihnioglu, File)
In this Saturday, March 19, 2016 file picture, French Army Chief of Staff, General Pierre de Villiers, arrives at the Elysee Palace to attend an emergency security meeting in Paris, France. (AP Photo/Kamil Zihnioglu, File)