If Julius Caesar lived to invade Parthia?

[Frank]

I'm not sure where Plutarch got the notion that Caesar intended, after conquering Parthia, to go north around the Black Sea and then west through Scythia and Germania all the way to Gaul, conquering everything in his path, but that seems a bit much even for someone as ambitious as Caesar.

Yeah, if there was ever a plan in human history, this was one. Conquering the Parthian Empire and afterwards the Sarmatians, Dacians and Germans coming from the East instead of the West sounds truly epic.

But honestly, Caesar was an old man, and his health was not the best. He never had the manpower to hold and secure all this territory and he underestimated the geopgraphy and the population of the north dramatically. Not taking the political situation in Rome into account.

The Romans captured their capital what? A total of 5 times? It probably wouldn't have made a difference in the long run

Even for roman authors, it was propably fully unclear, which province was conquered more often: Mesopotamia or Germania. :?