How did Marius's army reforms help end the Roman Republic, according to Thomas Madden?

Thomas Madden said Marius replaced Rome's citizen militia with a paid professional army. Because the generals were also politicians, soldiers tied their pay, postings and plunder to their commander, and their loyalty shifted from the constitution to the general. That let Sulla march his legions on Rome, which Madden treats as the point around 80 BC when the Republic was effectively finished, before Octavian won full control by 27 BC.

• Madden said Pompey and Crassus kept their legions camped outside Rome as political leverage.
• Sulla issued proscription lists of people who could be killed on sight, with killers able to claim some of their property.
• Madden said the US framers broke that bond: American troops get no spoils, and Congress cannot fund the army for more than two years at a time.

Source: our own transcription of the episode. The full conversation is on The Shawn Ryan Show (2026-11-02). Read the whole episode summary →

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