Here lies the information of the 4 nations
Firebending, one of the four elemental bending arts, is the pyrokinetic ability to control fire. It is unique among the bending arts, as it is the only one in which the performer can generate the element. The first human firebenders lived in a city atop a lion turtle during the era of Raava and the art later spread to the Sun Warriors, the Fire Nation, and the United Republic of Nations. The Earth Kingdom also has a small firebending minority. Firebending draws its power from the sun, and the first human firebenders derived their firebending techniques from the dragons. Firebending is known for its intense and aggressive attacking style and general lack of adequate defensive moves, although firebenders can modify offensive maneuvers to function as a defense, such as creating large walls of fire or shooting down incoming attacks with fire jabs.
Airbending, one of the four elemental bending arts, is the aerokinetic ability to control and manipulate air. The peaceful Air Nomads utilized this type of bending in their everyday lives.
Air is the element of freedom. Airbenders continually sought spiritual enlightenment, and, as a result, all children born into the Air Nomads were benders. The first airbenders learned their art from the flying bison. The key to airbending is flexibility and finding and following the path of least resistance. Airbending is notable for being almost purely defensive, as well as the most dynamic of the four bending arts. Airbenders can overwhelm many opponents at once with large and powerful attacks that could prove fatal; however, due to the pacifist nature of the Air Nomads, such attacks are rarely used.
Earthbending, one of the four elemental bending arts, is the geokinetic ability to manipulate earth and rock in all their various forms, prevalent in the Earth Kingdom and the United Republic. Following the lion turtles' decision to relinquish their role as protectors of mankind, Oma and Shu were the first earthbenders to learn this art from the badgermoles.
Waterbending, one of the four elemental bending arts, is the hydrokinetic ability to control water in all of its various forms. This type of bending is used by the people of the Water Tribe, who are divided into the Southern, Northern, and lesser known Foggy Swamp tribes, as well as those of the United Republic, each with their own unique bending style.
Water is the element of change.[1] The moon is the source of power in waterbending, and the original waterbenders learned to bend by observing how the moon pushed and pulled the tides. The fighting style of waterbending is mostly fluid and graceful, acting in concert with the environment. Foggy Swamp style waterbending, however, is more rigid and straight.[5] Waterbenders let their defense become their offense, turning their opponents' own forces against them. Even when waterbenders do take an attack stance, their moves always appear to flow from one to the other.
Energybending is the ability to bend another person's life energy. It predates the four main bending arts, the formation of the four nations, as well as the creation of the Avatar. Before the Avatar came into existence and the separation of the four nations, the lion turtles bent the energy within humans and themselves. Eventually, humans were gifted the other four bending arts, and, over time, the knowledge to perform energybending was almost completely lost. The last living lion turtle kept the ability alive by escaping the lion turtle hunters and hiding. This lion turtle later passed down the ability to Avatar Aang. The capabilities of energybending are not well understood; what is known is that bending a person's life energy can impart them with knowledge instantly, remove their bending completely, or restore it. This bending art can be perilous to the user, which is why so few have ever used it. In addition, even though mastering the four elements is a necessity for the Avatar, learning energybending is optional.
