1. A Republic Already Hollow Before the Knives Fell
The Roman Republic of the first century BCE was not a healthy system suddenly threatened by one ambitious man. Decades of social conflict, slave rebellions, prolonged foreign wars, and the rise of private armies had already eroded the Senate's authority and the mechanisms of collective government. Generals such as Marius and Sulla had marched legions on Rome itself within living memory of Caesar's murder. The real question was not whether the old republican order would change but who would shape what came next.
Why it matters: Understanding this context prevents the comfortable fiction that the conspirators were defending something stable. They were fighting over the wreckage of an institution that had been fracturing for generations.