The Java War, also known as the Java War of 1825-1830, was a significant conflict in the island of Java, part of present-day Indonesia. It was primarily a rebellion against the Dutch colonial rule, led by Prince Diponegoro, who sought to protect his land and people from foreign exploitation. The war was marked by guerrilla tactics and widespread support from various Javanese communities. The conflict resulted in heavy casualties and destruction, ultimately leading to the Dutch victory. Following the war, the Dutch strengthened their control over Java, which had lasting effects on the region's political landscape and colonial policies. The Java War is often seen as a symbol of resistance against colonialism in Indonesia.