Daniel Davis of the American Battlefield Trust gives an overview of the role that Cavalry had in the Civil War for both the Union and Confederates. | American Battlefield Trust

#OnThisDay, April 6, 1862, 40,000 Confederate soldiers under the command of Gen. Albert Sidney Johnston poured out of the nearby woods and struck the encamped divisions of Union soldiers occupying ground near Pittsburg Landing on the Tennessee River. The overpowering Confederate attack drove the unprepared Federal soldiers from their camps and threatened to overwhelm Maj. Gen. Ulysses S. Grant’s entire Army of the Tennessee. Some Federals made determined stands, and by afternoon, had established