Rubicon: The Triumph and Tragedy of the Roman Republic

by Tom Holland

Although much reduced from the numbers Sulla had commanded the previous summer, they nevertheless represented a menacing concentration of fighting power. Only the legions of Pompeius Strabo, busy mopping up rebels on the other side of Italy, could hope to rival them. Marius, back in Rome, had no legions whatsoever. The maths was simple. Why, then, had Marius failed to work it out, and how could so hardened an operator have chosen to drive his great rival into a corner where there were six battle-hardened legions ready to hand? Clearly, the prospect that Sulla might come out of it fighting had never even crossed Marius’ mind. It was impossible, unthinkable. After all, a Roman army was not the private militia of the general who commanded it, but the embodiment of the Republic at war. Its loyalty was owed to whomever was appointed to its command by the due processes of the constitution. This was how it had always been, for as long as the Republic’s citizens had been going to war – and Marius had no reason to imagine that things might possibly have changed. But Sulla did have reason: his hatred of his rival, his fury at the frustration of his ambitions and his utter belief in the justice of his case all helped him to contemplate a uniquely audacious and dreadful possibility.