Republic City is a large metropolis located in the lower areas of a mountainous region, with large bodies of water in the immediate vicinity. The city seems to be situated on an island, a bay, or a peninsula. Republic City was founded by Fire Lord Zuko and Avatar Aang. It is a host to all nations and is also suffering from high levels of crime and anti-bender revolt led by the Equalists. The police force utilizes Metalbending to keep the city under control. It's leader is Chief Bei Fong, daughter of the Metalbending inventor, Toph Bei Fong. Republic City is also known to harbor Pro-Bending matches, which is the city's number one form of sporting activity.