The Gungan–Naboo War was fought between the Human Naboo people and the indigenous Gungans on the planet Naboo between 150 BBY and 121 BBY. In the course of the war, the Monarch of Naboo was killed, and the monarchy subsequently became an elected position. Even after the war's conclusion, certain Naboo noble houses attempted to continue the war by enlisting mercenaries to claim plasma sources from the Gungans, though they were unsuccessful.