The "Elemental Nations" refer to a fictional world divided into four main regions, each representing a different element: Water, Earth, Fire, and Air. Each nation has its own unique culture, abilities, and governing systems, often influenced by the characteristics of their respective elements. In this world, individuals known as benders can manipulate their nation's element through training and skill. The interactions and conflicts between these nations often drive the narrative, highlighting themes of balance, harmony, and the consequences of power. The concept is popularized in various media, including the animated series Avatar: The Last Airbender.