Round 6
Well, after Zara initiated plan Nuclear Winter against me, I needed to hang on to my gains on his continent. Offense is the best form of defense, so I swung my troops round to attack more of the Native American cities:
I had no means of moving new troops to the continent in except through the air. A city without an Airport can only receive one unit per turn, and when SB peace vassaled I only had three cities. So I needed to take more to allow me to ferry in more troops:
After taking out the Native Americans, I made peace for ten turns:
Zara was one tech away from a full Spaceship, and I wanted to make sure that I could wipe out his capital after he'd launched. My Transports were on the wrong side of the world, and needed to circumvent the globe.
Twelve turns later I redeclared and launched an ICBM of my own:
Now, normally I don't build Nukes to use against the AI. They're fine in a pinch, but I think it's a liiitttle bit cheesy to launch a mass nuclear attack in a single turn, unless you really have to. (This is a personal thing. It's not a hard and fast rule.

)
But you see my enormous stack of troops that took Aksum? On the next turn, BOOM.

Three nukes, gone. My homeland too, BOOM. My capital, Heroic Epic city, Globe Theater spot all targeted:
Look at how the citizenry suffer:
So, long story short, this entire turn made me sufficiently angry to drop all my principles and start using Tactical Nukes instead of Bombers:
Leading to "victory" in 1929 AD:
Stats and screens:
I conventionally post a picture of my capital at this point, to show how awesome it became. Well here it is:
Moral of the story? Ragnar's a nut job... but Zara? Don't mess with Zara.
Thanks everyone for reading, playing, and commenting!