Answer:
Marius reformed the system by putting the responsibility of supplying the army in the hands of the general. Roman soldiers also had to carry all of their own supplies, weapons, and several days' worth of rations. The century carried with it all the arms and accouterments required to feed and maintain it. After the Germanic and Celtic tribes were defeated, Marius became the first general to negotiate with the Senate for a retirement plan for his soldiers. Marius persuaded the Senate to give his soldiers land, which he based on the early Republic's practice of giving distinguished soldiers plots of land. In effect, Marius' reforms changed the Roman military from a service of short-term militia into a professional standing army. This allowed Rome to use the military as an effective tool for military expansion and internal security and laid the foundations for the role of the Roman army for centuries to come.
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