The Plains war (jan 21, 1850 – dec 21, 1870)

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Plains Wars, Series of conflicts from the early 1850s through the late 1870s between Native Americans and the U.S. and its Indian allies over control of the Great Plains between the Mississippi River and the Rocky Mountains. The initial major confrontation, sometimes known as the First Sioux War, broke out in the Dakota Territory near Fort Laramie (in present-day Wyoming) following a dispute over a killed cow between white settlers traveling to the far west and local Teton (Western Sioux) people. U.S. brevet Second Lieut. John L. Grattan attacked a superior Teton force in an attempt to apprehend the suspected culprit, and the Teton returned fire, annihilating Grattan’s entire column. The following year, open conflict spread farther southward, and, from the late 1850s through the 1870s, war continued to rage along the western frontier, from Texas to Minnesota.

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