The Blackfoot Confederacy is name of the group of small cities that banded together as a protective coalition.
The Siksika, the Kainai or Blood, and two divisions of the Peigan or Piikani—the Northern Piikani and the Southern Piikani—are the linguistically related groups that make up the Blackfoot or Blackfeet people, collectively known as the Blackfoot Confederacy, also known as Niitsitapi or Siksikaitsitapi.
They bought horses and weapons in the early part of the 18th century from European traders and their Cree and Assiniboine middlemen. These were utilized by the Blackfoot to annex more land at the cost of nearby tribes.
On the northwest Plains, the Blackfoot were regarded as one of the strongest and most ferocious military forces.
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