Land of Whirlpools

The is where Kushina Uzumaki originates from. It no longer exists, having the rest of the survivors scattered across the globe. The surname Uzumaki was very common in this country. It was located on a island next to the Land of Fire.

Hidden Eddy Village
This country's village was well known for their fuinjutsu to the point that it led to its destruction in war, and was close allies with the Land of Fire's Hidden Leaf Village; the First Hokage's wife, whom originated from this village, was the first Jinchuriki of the Nine-tailed Demon Fox. The people of the Land of Whirlpools were noted to have notoriously long lives, so it gained the title "The land of longevity." The village no longer exists - it's people scattered across the globe. It's village symbol is worn to this day by Hidden Leaf Shinobi on their backs.

Trivia

 * "Uzumaki" means "spiral" or "whirlpool".
 * The Uzumaki clan, who ruled the land of Whirlpools, are distant relatives of the Senju clan.