Of course, Catherine, with whom I had a Defensive Pact, didn't like the fact that I also had a Defensive Pact with Roosevelt and Asoka. So in 1827 AD, she turned words into actions and declared war on me.
I was only presented with the option of replying "So be it!", which isn't much of an option at all. I wasn't even able to choose a preferable option, such as: "Pretty please, with monkeys and sugar on top, don't hurt me".
Catherine hadn't played fair at all. On the same turn as her war declaration, she landed her troops, which consisted of a Tank, an Artillery, and 5 Gunships!
Okay, not so bad, right?
Actually, it was quite bad! I had turned off research a long time ago. Sure, I'd finally researched Feudalism and Guilds, but I didn't have Gunpowder or Military Tradition.
Catherine landed her stack of troops on my East Coast, escorted by Destroyers, on the same turn that she declared war. It's not like I would have been able to attack her ships and win, with the 5 or 6 Triremes that I would have been able to pull together within a turn or two, but it would have been nice to at least have had the chance.
To make matters worse, I was using Emancipation, not Slavery, so I couldn't pop-rush any defenders. Down the drain went my Gold reserves during this war effort, plus many turns' worth of additional Commerce.
At 630 Gold a pop, even without a Barracks, a Longbowman sounds cheap, compared to having your city taken over and Catherine establishing a base on your continent.
Initially, I only had a Horse Archer defending the city by which Catherine landed. Obviously, I immediately upgraded the Horse Archer to a Knight. I was able to cash-rush a Longbowman in just about all of my nearby cities, so at least I'd have one extra defender in that city. I was also able to move a couple of troops from a nearby city. Further, I ferried a couple of Galleys' worth of troops from my Horse-island city.
Here's what happened after I ended my turn:
Trireme loses to: Russian Destroyer (30.00/30)
Longbowman loses to: Russian Artillery (9.90/18)
Berserker loses to: Russian Gunship (13.92/24)
Berserker loses to: Russian Gunship (9.60/24)
Longbowman loses to: Russian Gunship (17.76/24)
Catapult loses to: Russian Gunship (21.60/24)
Trebuchet loses to: Russian Gunship (24.00/24)
Knight loses to: Russian Tank (24.92/28)
Pikeman loses to: Russian Tank (24.92/28)
As you can see, I was able to mount a sizable number of units in defense, but now I was back to square one again. So the money-rushing of units (at double the price) continued. I was able to ferry a couple of more Catapults using my ships and some other Catapults had arrived from my Western cities, so I threw them at whatever I could.
I learned Gunpowder at the end of the second turn of war. However, that tech didn't help me much--it cost so much to rush-purchase a Musketman that I believe I only bought one or two of them.
Anyway, my suicidal Catapults had the desired effect, such that Catherine's units were weakening and decided to spread out. Of course, this fact would be bad for future Catapult attacks, but it also meant that the attacks were no longer focused. Some of the Gunships had actually started attacking a second city, my 2nd Legendary-City-to-be, so neither city under attack ended up being captured. It seemed wasteful for the Artillery to keep bombarding the one city while the Gunships ran off after the second city, but I wasn't the one in charge of that military operation.
Here's what happened on Catherine's turn, again without me losing a city (yet):
Caravel loses to: Russian Destroyer (27.60/30)
Longbowman loses to: Russian Gunship (10.56/24)
Knight loses to: Russian Gunship (10.56/24)
Catapult loses to: Russian Gunship (17.28/24)
Catapult loses to: Russian Gunship (19.20/24)
Trebuchet loses to: Russian Gunship (20.64/24)
Worker loses to: Russian Tank (26.32/28)
On Catherine's next turn, the Gunships kept attacking and continued getting wounded, but I received the lucky break that I'd been waiting for:
Worker loses to: Russian Tank (26.32/28)
Berserker defeats (3.52/8): Russian Tank
Wow, do Berserkers kick butt, or what? I guess the extra Culture from Uppsala, my 2nd Legendary-City-to-be (actually, it was never to be, but let me have my moment, please) helped a lot, plus the fact that it was the other city which had been bombarded.
After this point, I realised that I had the upper hand. As long as I could kill off Catherine's Artillery, the Gunships would continue to be annoying, but I could keep rush-buying units and eventually fend them off before they healed. The Gunships couldn't capture a city, so they were useless on their own. I guessed that as long as Catherine didn't occupy a city on my continent, she wouldn't send further troops.
I threw units at that Artillery until it died:
Catapult loses to: Russian Artillery (13.86/18)
Catapult loses to: Russian Artillery (13.86/18)
Knight defeats (7.60/10): Russian Artillery
I ganged up on the Gunships one by one, waiting for them to first be reasonably wounded from attacking my cities' defenders for a couple of turns. I picked each of them off at the cost of several suicidal units.
At last, the threat was over. For an outlay of another 2200 Gold, Catherine was happy enough to leave me alone.