"Grattan massacre"@en . . . . . "2 killed" . "~1,200 warriors" . "Lakota victory, start of the First Sioux War" . "LakotaSioux" . "1854-08-19Z"^^ . . . . "30 Soldiers" . . . "The Grattan Massacre, also known as the Grattan Fight, was the opening engagement of the First Sioux War, fought between United States Army and Lakota Sioux warriors on August 19, 1854. It occurred east of Fort Laramie, Nebraska Territory, in present-day Goshen County, Wyoming. A small detachment of soldiers entered a large Sioux encampment to arrest a man accused of taking a migrant's cow, although such matters by treaty were to be handled by the US Indian Agent."@en . "1 Civilian interpreter" .