Due to the Legion being modeled after the Roman Empire, these men are sent into battle armed only with machetes, crudely made blades, and other blunt weapons.

Most Legionaries are brainwashed tribesmen bread from birth to fight for Caesar at any cost. The military hierarchy of the Legion's military is strict and well established. If the situation gets desperate enough, Legionnaires will use firearms and give them to the recruits and even use vehicles if need be, but the Legion teaches its troops to avoid using said weapons as much as possible and forbids the usage of robots and drones viewing them as making human soldiers weaker. Firearms are used by the Legion, but only by the decanus, officers of the Legion, and other high ranking Legionnaires such as centurions. Legionnares are mostly made up of conscripted warriors from subjugated tribes under the Legion and are also made up of poorly armed recruits who are only equipped with improvised machetes, axes, and other blunt objects. The Legion's large size and population allows it to muster a large army capable of sustaining high casualties and taking on far more better armed opponents.

Legionnaires are trained in the ways of the ancient Roman Empire and are ordered to fight their enemies using only improvised weapons, machetes and other blunt objects with their devoution, fanaticism and blind loyalty towards Caesar driving them forward towards combat, even against technologically superior and better armed opponents such as the soldiers of the NCR. The military of the Legion is the largest and dominate of these castes making up most of its population, specifically its male population as women are forced into the role of breeders and caretakers tasked with giving birth to and caring for future Legionnaires. Caesar's Legion is a reactionary and militaristic slaver society and is classified into various castes by those who've studied them.

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