What are the cause of the war between Gup and Chup?How are people from the land of gup responsible for it?

Hupwala and its dictator Khattam-Shud represent this censorship. Khattam-Shud wishes not only to poison the Sea of Stories, but he also wishes to silence the stories completely. Chup, therefore, is not only a land of darkness, but also a land of complete silence and censorship. The Land of Gup, on the other hand, is a land of complete Freedom of Speech, even to those that would criticize the land’s leaders in what might be considered anarchy. the Guppees’ own contradictory behavior; though they favor complete freedom, their own Eggheads at P2C2E House create an imbalance in light that leaves the Chupwalas in perpetual darkness against their will. This suggests that all societies have some propensity to censor others. Likewise, the Guppees risk defeat and incompetence from their inability to censor their criticisms and gossip.