abstract:Latrocinium (from Latin latro, "bandit", ultimately from Greek latron, "pay" or "hire") was a war not preceded by a formal declaration of war as understood in Roman law; thus guerrilla warfare conducted against Rome was a form of latrocinium. It is typically translated into English as "banditry" or "brigandage", but in antiquity encompassed a wider range of subversive or anti-authoritarian actions, especially slave rebellions organized under charismatic leaders.