The First Battle of Memphis was a naval battle fought on the Mississippi River immediately above the city of Memphis on June 6, 1862, during the American Civil War. The engagement was witnessed by many of the citizens of Memphis. It resulted in a crushing defeat for the Confederate forces, and marked the virtual eradication of a Confederate naval presence on the river. Despite the lopsided outcome, the Union Army failed to grasp its strategic significance. Its primary historical importance is that it was the last time civilians with no prior military experience were permitted to command ships in combat. As such, it is a milestone in the development of professionalism in the United States Navy.