riot gear

activist anarchist anonymous armed army authority brutal brutality chemical civic confrontation confronting costume dramatic evil fear fierce force forces formation freedom gas gear group grunge guard headgear helmet iconic intense intimidating line man mask military monochrome officer police policeman power protection protest radical rebelion red regime resistance respirator retro revolution revolutionary riot row scary secure security sentry shield sinister soldier suppression symbolic team teamwork tear tense terror thugs trouble tyranical uniform visor