In a recent game of mine, I was America (random start in Africa) on a standard size Earth map, king difficulty. I had all of Africa and most of Europe, and had expanded east to Mesopotamia. The Iroquois, who started in China and had settled/conquered most of what is Russia, were the most powerful AI and probably had a larger military than me. They declared war on me, and after I destroyed most of their invasion, I went on the offensive and took 3-4 cities. My civ was starting to get unhappy, so I thought I would see what he would offer for peace.
This is the aftermath...
He basically offered me his entire nation, everything but his capitol. I took it and razed most of it, and liberated the city states. Every city in that screenshot being burned is from the peace treaty, plus Brussles, Seoul, and Tenochtitlan and a few others off the screen. Total count was 23 cities. I would have just taken peace, because I was getting near -10 happiness anyway. But I just couldn't pass on the opportunity to completely cripple an opponent.
This is the aftermath...
Spoiler :
He basically offered me his entire nation, everything but his capitol. I took it and razed most of it, and liberated the city states. Every city in that screenshot being burned is from the peace treaty, plus Brussles, Seoul, and Tenochtitlan and a few others off the screen. Total count was 23 cities. I would have just taken peace, because I was getting near -10 happiness anyway. But I just couldn't pass on the opportunity to completely cripple an opponent.