Kamehameha took Puna from its leader Keawema‘uhili in 1790. Keoua Ku‘ahu‘ula tried to take over his land while he was busy fighting, but Kamehameha was able to come back with his men in time. Keoua Ku‘ahu‘ula ran away past the volcano Kilauea and lost many men because of poison gas. The next year, Kamehameha invited him to visit. When Keoua Ku‘ahu‘ula came, he and his protectors were all killed. Kamehameha was now the boss of the big island of Hawaii.