Allow me to share a story and a warning.
Immortal, standard map, continents, playing as Russia. Me and the 7 AIs are spread over two large continents. Fast forward to the 1800s, and I've killed 6 of them, with only the mediocre Siam left on the other continent.
I'm way ahead in tech, with mech infantry, cossacks and artillery rolling around, while he's got riflemen, cavalry and cannons. My army's substantially larger, and the AI sucks at naval invasion anyway. So there's no way I could lose, right?
Wrong. I declare war, and all those notifications about cancelled deals and my allied city states joining the war pop up. I ignore them all, blitzing a substantial portion of his army on the first turn. I end turn, content that I'm about to rack up another win and the achievement for winning with Catherine.
I hear the 'unit lost' sound. No problems - he probably just picked off one of my cossacks. But no! It turns out that he was allied to one of the city states tucked away in the corner of my continent. And being a city state, it was on par technologically with me. So it had 3 or 4 mech infantry zooming around my completely undefended continent, taking my fringe cities!
I rush buy my own mech infantry in my next border town, but when I end turn the three city state mechs take that town easily also. And so they come, deeper and deeper into my territory, almost all the way to Moscow.
Of course, I put them down eventually, and on the other continent, I take Siam's capital pretty easily. But it could've been a whole different story if the surprise allied city state was closer to Moscow to start.
So the lesson here: check who your last foe is allied to, even if it seems you have no way of losing!
Immortal, standard map, continents, playing as Russia. Me and the 7 AIs are spread over two large continents. Fast forward to the 1800s, and I've killed 6 of them, with only the mediocre Siam left on the other continent.
I'm way ahead in tech, with mech infantry, cossacks and artillery rolling around, while he's got riflemen, cavalry and cannons. My army's substantially larger, and the AI sucks at naval invasion anyway. So there's no way I could lose, right?
Wrong. I declare war, and all those notifications about cancelled deals and my allied city states joining the war pop up. I ignore them all, blitzing a substantial portion of his army on the first turn. I end turn, content that I'm about to rack up another win and the achievement for winning with Catherine.
I hear the 'unit lost' sound. No problems - he probably just picked off one of my cossacks. But no! It turns out that he was allied to one of the city states tucked away in the corner of my continent. And being a city state, it was on par technologically with me. So it had 3 or 4 mech infantry zooming around my completely undefended continent, taking my fringe cities!
I rush buy my own mech infantry in my next border town, but when I end turn the three city state mechs take that town easily also. And so they come, deeper and deeper into my territory, almost all the way to Moscow.
Of course, I put them down eventually, and on the other continent, I take Siam's capital pretty easily. But it could've been a whole different story if the surprise allied city state was closer to Moscow to start.
So the lesson here: check who your last foe is allied to, even if it seems you have no way of losing!