On June 11, 1863 two brigades of Union cavalry (Brig. General Robert Mitchell’s Division) engaged Confederate cavalry commanded by Nathan Bedford Forrest south of Triune. The attacking federals drove the Confederates west to a ford in the Harpeth River. The Confederates made a last stand after they crossed the river but were ultimately forced to retreat in disorder by an attack made by the 2nd Michigan, 1st Tennessee and 2nd Indiana Cavalry regiments.
Hoover’s Gap
On June 23, 1863 in what would be the beginning of the Tullahoma campaign, Maj. Gen. Williams Rosecrans (Army of