United Republic of Nations

The United Republic of Nations, also known as simply the United Republic, is one of the world's six nations. Unlike the other five nations, however, the Republic does not focus on a certain type of bending, but rather is diverse and includes all five bending categories, and it is not one of the original existing nations. It was created at the end of the Hundred Years' War by Avatar Aang and Fire Lord Zuko to put a dispute between the Fire Nation and Earth Kingdom to rest, after the Fire Nation populated and colonized Earth Kingdom lands. These lands became what is known as the United Republic.

With decent militaristic strength, and an economy only surpassed by the Fire Nation, the United Republic of Nations is also the second leading industrial nation, the first being the Fire Nation.