The Four Nations as seen on Avatar: The Last Airbender
|Nations||Fire Nation, Earth Kingdom, Water Tribe and the Air Nomads.|
The world of Avatar: The Last Airbender and The Legend of Korra is divided by the following four nations: the Fire Nation, the Earth Kingdom, the Water Tribe and the Air Nomads, all individually known for mastering their respective element; Firebending, Earthbending, Waterbending and Airbending, respectively.
 NationsAvatar: The Last Airbender. Due to the Fire Nation's ability to fuel steamships, aircrafts, etc., they quickly became a powerhouse in the Avatar World and demonstrated their technological advances on the rest of the world during The War of Avatar: The Last Airbender.
Despite their cruel and powerful background, the war ended in peace when Zuko became their king and embraced the other Nations in peace instead of hatred.
The Earth Kingdom is ran by a monarch stationed at its capitol, Ba Sing Se. The Earth Kindgom's vast cities and complex layouts are often assosciated with the Earthbenders themselves, as they're able to manually create the city using their bending power.Water Tribes, collectively. On the northern pole lives the Northern Water Tribe; on the south pole lives the Southern Water Tribe; within the Earth Kingdom lives the Foggy Swamp Tribe.
Unlike the southern water tribe, the Northern Water Tribe is strong and full of Waterbenders. Led by chief Arnook, the Northern Tribe is a much safer place when compared to the Southern Tribe led by Hakoda. The southern water tribe became a target of the Fire Nation and lost all but one Waterbender, Katara.
During Avatar: The Last Airbender, the Fire Nation exterminated the Air Nomads in hopes of killing the last Avatar. Fortunately, Aang was able to escape and served as the last Airbender of that series. Currently, his son, Tenzin, serves as the only airbender of The Legend of Korra.