At the onset of the Civil War, General Winfield Scott noted that a Union victory could be achieved by controlling the Mississippi River. Scott believed the entire Mississippi Valley could be controlled using only 12 to 20 gunboats and 60,000 soldiers. More resources would eventually be needed; however, the Federals ultimately enabled, as President Abraham Lincoln said, the ‘Father of All Rivers to flow unvexed to the sea.’
Because the Secretary of the Navy Gideon Welles was preoccupied with establishing a blockade of the Confederate coastline, he placed control of the Western Gunboat Flotilla to the War Department. This action would give a strong unity of command as the Union army and naval forces endeavored to wrestle the river from the Confederacy. Commander John Rodgers was initially placed in command of the flotilla; however, he was soon replaced by Flag Officer Andrew Hull Foote.