This was an intense and fun game for me.
After getting DoW'ed by Brennus in 250 BC, and losing (or giving away) our 2 cities on the mainland, we managed to eliminate Ragnar in 325 AD (this war lasted 6 turns), while amassing an army to get our revenge on the Celts.
In 400 AD we resumed the fighting across the channel. In 860 AD we had captured 4 cities from them, and shouldn't be too far from getting his capitulation, when Julius (who was at war with Pericles) declared on us, immediately followed by Shaka.

Not sure how that was possible, if the Roman were busy with another war. I did lose a recently captured city to Shaka in the interturn, just to recapture it in the following turn. Had to take a peace deal from Brennus, receiving one of his cities as the price for peace.
Oddly enough, aside from an attack from a single praetorian, we did not see more combat with Roman troops during this "war". We eventually accepted peace with JC in 1020AD, as we had to deal with a lot of invading zulu troops, luckily with a high success rate (like 20 kills to each loss). I could not invade the Zulu as I had no OB with Brennus (who had peace vassaled to JC meanwhile), so we accepted peace in 1060 AD. Pacal peace vassaled to Shaka shortly thereafter.
We then took some time focusing on research to make a run for Lib/ Communism (for SP) when in 1140 AD Julius, Shaka (and of course their vassals) declared war on...Pericles!

I had no intention of going to war against our Greek friends, but obviously couldn't allow the bad guys to expand, so I joined the bandwagon as soon as I had my troops in place.
After capturing 5 Greek cities, and before the baddies could capture a single one, I accepted Pericles' capitulation in 1350 AD.
It didn't take long for our former "ally" JC to declare war on us again, in 1380 AD. After I had captured a handful of Roman cities, in 1525 AD Brennus revolted and changed his status from a Roman vassal to a Zulu vassal, of course causing Shaka and his other vassal Pacal to declare on us once more. In the following turn we made peace with JC, getting a city in the deal.
At that point our army had Cavalry, Redcoats and Cannons vs medieval units. Most of the battles in this war were fought on Celt lands, until 1600 AD, when Brennus lost his last city. In the same year we captured Pacal's capital. Then we took the fight to Zulu grounds. After we captured a few cities, we took peace for another city in 1630 AD, just to turn again to JC, who capitulated after losing a couple of cities in a couple of turns (1640 AD). After that, it was just a question of waiting for the captured cities to get out of revolt and expand their borders for a 1670 AD Domination victory.
