I'm currently writing an essay on Caesar's justification for going to war against Pompeius. I have written a bit based on his own writings (commentarii de bello civili), but I would also like some more ancient sources besides Caesar himself. Do you guys know of any specific writings (if they are available online, that would be great too) commenting on either Caesar's casus belli or their own reason for opposing him? It could be Cicero, Pompeius, Scipio, anyone of prominence really. I don't much care if it is from letters, speaches, whatever, as long as it is some new perspective for me to discuss. Can you guys help me out?
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