Could he have succeeded in his planned invasion of Parthia? He planned to invade and subjugate Parthia before turning north up through the Caucasus, pacifying the steppe tribes, heading around the Black Sea, then west up the Danube to conquer Germania. It was audacious to say the least, but Caesar had a history of succeeding at insanely audacious things, almost always fighting while outnumbered and winning. If it hadn't been for the massive civil wars in Rome after Caesar's death, Rome's military might would have been damn near unshakable at the time. The Parthians had superior horse archers, but I find it believable Caesar could have found a solution for those. What do you all think?
Here's a map for those unfamiliar with the area: