The Mon Cala city square existed within the Mon Cala city located on the aquatic world of Mon Cala. In the initial phases of the Battle of Mon Cala during the Clone Wars, combat occurred here between the Galactic Republic and the Mon Calamari monarchy on one side, and their adversaries, the Quarren Isolation League and the Confederacy of Independent Systems, on the other. The water was a key feature of the planet.