Land of Iron (Waterkai)

The Land of Iron (鉄の国, Tetsu no Kuni) is an icy, snow-covered country. It is politically unusual in that it has remained neutral and never been involved in the ninja wars. In fact, the have a rule since long ago that they would not meddle with the land. Despite this, it is said to have an incredibly strong military which is manned by, instead of ninja.

Nanakusa no Sekku
Nanakusa no Sekku (七草の刹苦; Lit. "Seven Herbs of the Suffering Country")