The climax of my book xenocide is when one of the main protagonists (Quim) is murdered by an angry tribe of natives who believe that they have been chosen by God to cleanse the universe of all human life.
This causes massive outrage among the people of Lusitania who start a massive riot that overwhelms the tiny police force. The angry villagers chose to attack and burn down the home of a piggy that they have lived with in peace for many years in order to avenge Quims death.
Many people are killed on both sides and when the rage calms the villagers realise what they have done as they watch the forest of their former friends burn to the groun and understand what terrible crime they have committed.
After the massacre Enders wife Novhina leaves Ender and blames him for the death of their son. This act breaks Ender and he chooses to seek out his youngest and most favoured son Olhado for help. He calms Ender down and he realises that he needs to help rebuild what his community destroyed even though it wasn't his doing.
After this the action calms as more and more problems are solved and the piggies rebuild their community.