Originally posted by Askan
If u are crushing another civ and u have arrived with a lot of forces in front of their capital don't just rush in. First demand them the remaining cities so they won't move their capital then declare war again and take the city. This tactic will work only if they are close to total defeat. If u don't do this u'll have to run after their other cities after u take the capital.
Listen to me! I know what i'm saying!
and take the huge rep-hit associated with such wanton disregard for peace treaties? no way! You do this and you will never win that UN Victory. Also you'll find that luxury trade deals in the future will become exaggerated against you (like get 1 lux only if you give 5 lux). Alliances you have will easily break down since the civs you have alliances with don't trust you.
Instead take their capital. withdraw all forces to your border. Sue for peace. Take as much border cities (closest to you) from the peace treaty. Leave them in peace for 20 turns while you fix your economy. Then attack them again and repeat if they have enough cities to give you.