How do you break an alliance? Sometimes you've got one civ making life difficult. But that civ is aligned with 2 others so if you attach them then the other 2 will attach you. Going up against 3 civs at once is not a good idea. Maintenance of war ships is high enough for one war much less 3. Then there is the price of producing them in the first place. So if I align with the same 2 civs as the other guy then when I start a war with them our alignments cancel each other out, usually. After it's over I sometimes want to break the alliance. I don't generally like them. All they do is get you into a lot of wars that you didn't start. Although aligning with a civ with several other alignments can be good because if you need the assistance of your aligned civ then the others aligned with them will help too. Sometimes I just need to break an alliance and I don't know how.