A road block is set up by role-playing rioters during crowd and riot control training being conducted by U.S. Marines with SPMAGTF Crisis Response – Africa and French gendarmes with Mobile Gendarmeries Armored Group at the National Gendarmerie Training Center in St. Astier, France, Dec. 3, 2014. The exercise allowed the Marines to gain greater knowledge of non-lethal tactics, techniques and procedures while enhancing interoperability with the French Gendarmerie and strengthening the U.S. partnership with France. (U.S. Marine Corps photo by Cpl Jeraco Jenkins/Released).