Pembina County, North Dakota

Pembina County is a county located in the U.S. state of North Dakota. At the 2010 Census its population was 7,413. The county seat is Cavalier.

The area along the Pembina and Red rivers was long inhabited by various indigenous peoples. At the time of European contact, the dominant tribe were the Assiniboine and the Lakota (or Sioux, as the French colonists called them). Later the Ojibwe (or Chippewa) migrated into the area from the east and became the dominant tribe. The people had a long trading relationship with French colonists and supported them during the Seven Years' War against Great Britain. By the time of the War of 1812, the Ojibwe were allied with the British against the United States, hoping to forestall or slow European-American settlers' encroaching on their territory. During the first half of the nineteenth century, continuing conflicts between the Lakota and Chippewa along the Red River slowed European-American settlement. The Chippewa pushed the Lakota to the west and became dominant in the area.