Land of Waves

is a relatively poor nation, and thus does not have a hidden village. It is an isolated island, but used to be prosperous nonetheless, until Gato set his sights on it. He broke the people's will and monopolized the import/export industry, which was crucial for its economy. Team 7's first real mission was to this country, and, with the help of Zabuza Momochi and the townspeople Gato's reign of terror was ended for good.

The Wave Country was seen briefly one last time in chapter 347 when Sasuke Uchiha and Suigetsu Hozuki went to Zabuza and Haku's graves to retrieve Zabuza's giant decapitating knife.