Barbarians

The Barbarians were a group of people who invaded the Northern Water Tribe before 173 ASC. They proved a strong threat, but were thwarted by Tonraq and his men.

History
The Barbarians attacked the Northern Water Tribe while Tonraq was still a general, but quickly found themselves overwhelmed and retreated to a sacred forest believing that the North would not attack in sacred grounds. However, they were quickly proven wrong by Tonraq and his men as he attacked them violently, in such a manner that it destroyed the sacred forest.

Trivia

 * The Barbarians wore similar outfits as the Fire nation armies did around 100 ASC.