The Seven Nations of Canada (called Tsiata Nihononhwentsiá:ke in the Mohawk language) was a historic confederation of First Nations living in and around the Saint Lawrence River valley beginning in the eighteenth century. They were allied to New France and often included substantial numbers of Roman Catholic converts. During the Seven Years' War (1756–1763), they supported the French against the British. Later, they formed the northern nucleus of the British-led Aboriginal alliance that fought the United States in the American Revolutionary War and the War of 1812.