Sorry if this is a stupid question.
I've been reading about the American Civil War lately and the protests in the Union against the war, some of which were due to the draft, high death toll, and length of war. It dawned on me that I've never heard much, if any, about anti-war movements prior to that, whether they were major or minor. There were numerous wars prior to that which went on for years and decades such as the Thirty Years War and the Napoleonic Wars and I don't recall learning about anti-war sentiment during them. Then there are various major and minor conflicts in Greek, Roman and Medieval periods in history. I would think that there was some level of opposition to these wars beyond individual pacifism.
How did ancient and medieval countries deal with the movements, assuming they were widespread? Did they treat the protesters like rebels and imprisoned/execute them or did they do something else?
Source: reddit post