Brig. Gen. Don Carlos Buell assumed command of the
Army of the Ohio in November 1861, and in an attempt to consolidate Union control over the surrounding area, organized a spate of troop movements into the field. Part of these movements included the march of the 2nd Division under Brig. Gen.
Alexander McDowell McCook into Kentucky, with the goal of forcing the Confederates from the state. Meanwhile, the
Confederate Western Department, under General
Albert Sidney Johnston, set up a defensive line along the
Green River near
Munfordville, Kentucky. On December 10, 1861, under directions from McCook, Brig. Gen.
Richard W. Johnson ordered troops toward the Confederate lines near Munfordville to secure the
Louisville and Nashville Railroad bridge spanning the Green River. In the meantime, Rebel divisions under Brig. Gen.
Thomas C. Hindman, which included a Confederate force of
Terry's Texas Rangers,
Arkansas infantry, and
Mississippi artillery, responded by blowing up the south pier of the railroad bridge and about of track.
Col. August Willich of the
32nd Indiana Infantry Regiment sent two companies across the river to protect workers repairing the bridge and to help build a temporary pontoon bridge. When the pontoon bridge was completed on December 15, Willich ordered two more companies south of the river to reinforce the troops already on duty and posted four companies on the river's north side. Civilian stonemasons arrived from
Louisville, Kentucky, on December 16 to repair the railroad bridge. The Union forces were mainly men from the 32nd Indiana Infantry Regiment, also known as
Indiana's "1st German" regiment, which was composed mainly of
German immigrants and descendants of German settlers from the
Midwest. Col. Willich had assumed command at the request of Indiana's governor,
Oliver P. Morton. Willich was a disciplinarian who used Prussian bugle calls to direct his regiment on the parade ground and in battle. The Confederates were primarily the 8th Texas Cavalry Regiment, which became known as
Terry's Texas Rangers, formed by Col.
Benjamin Franklin Terry. General Johnston had requested Terry to join the army he was raising, promising him an independent command. The 8th Texas voted to join the general in Kentucky. ==Battle==