Rouketopolemos (Greek Рουκετοπόλεμος, literally "rocket war") is a local traditional event held annually at Easter in the town of Vrontados (Βροντάδος) on the Greek island of Chios. As a variation of the Greek custom of throwing fireworks during the celebration of the service at midnight before Easter Sunday, two rival church congregations in the town perform a "rocket war" by firing tens of thousands of home-made rockets across town, with the objective of hitting the bell tower of the church of the other side. The rockets are wooden sticks loaded with a propellant mixture containing gunpowder, and are launched from grooved platforms.