1836  (1923)  "Hah! what is the matter with the young Long-knife?"
1909  "My object," said Brock, addressing the Indians, "is to assist you to drive the 'Long Knives' [Americans] from the frontier, and repel invasion of the King's country."
1959  But Crowfoot says that the border--the medicine line--protects his people from the Long Knives.