The Northern Water Tribe is the northern division of the Water Tribe. Its people are entirely contained within one city located at the North Pole, which is the only surviving city of the Water Tribe. Built inside high walls of ice and an inhospitable terrain, the city prospers in its isolation. No attack by the Fire Nation on the city during The War has ever succeeded, including the massive Siege of the North. Unlike its southern sister tribe, the people of the Northern Water Tribe are still many and prosperous.