For an excellent explanation of War Weariness/Happyness see: http://www.civfanatics.com/civ3/strategy/war_weariness.php But very roughly, if one enemy declares war on you you will get 25% of war happyness (or, sometimes called inverse war weariness). That means, for each citizen in any one of your cities you will get 1/4 of a happy face, rounded down to the next integer. Or stated more clearly if you have a size 3 town you will get 3/4 of a happy face rounded down to 0. In a size 4 town you will get exactly one happy face. Etc., until at size 12 you will reap 3 happy faces from one source of war happyness. Now, if you have two sources of WH you will get two times 25%. That means that in a size three town you will get two times 3/4 of a happy face rounded down to 0 as opposed to 6/4 of a happy face rounded down to 1. . In a size 4 though you will get two full happy faces for two sources of WH. Etc pp. On to the main point of this post, namely that max. WW that you can get is 4 times 25%, i.e. 100% even if you have 5 (or more) sources of WW. Attached to the next post is a save of a game (C3 1.29f , not C3C) where I am at war with five different civs: Spoiler : I made them all DoW me sometime during the course of this game with the help of some quite exploitive techniques, so they all should be giving me WH - unless the WH has worn off of course. The happyness situation in a randomly chosen size 12 town (in this case Persepolis) after selling the Marketplace looks like this: Spoiler : In order to achieve such a situation you would need 21 happy/content faces. What I have though are: 1 content face from the level (Deity) 8 happy faces from the luxes Which means that 21 - 1 - 8 = 12 happy/content faces have to come from different sources. That different source in this game here is War Happyness. But 12 happy faces from WH is only consistent with four sources of WH and not five, so am I really getting WH from five different sources? To confirm this I selectively made peace with individual civs. First I sign peace with the Russians. But nothing really happens, as Persepolis still has 10 happy, 1 content, and 1 unhappy people - same as in the screen shot. I make peace with the English also. (This is not really necessary, but I did anyway.) After doing so the happyness in Persepolis drops down to 9 happy, and 3 unhappy people: Spoiler : So, yes, the English really are/were giving me WH. As are/were the three other civs, Japan, Egypt and China. Remains to be seen if the Russians are really giving me WW, or if it has worn off already. I reload the save, sell the market once more and then sign peace with the English, a known source for WH. Persepolis looks the same as before: 10 happy, 1 content, and 1 unhappy people, exactly as in the first screen shot. That means, apart from the English, the Japanes, the Egyptians, the Chinese there must be another sourse of WH in the original save: the Russians. Conclusion: Five sources of WH give you the same amount of happyness as four. Or, in other words War Happyness caps at 100%. .