The Union Navy was the United States Navy (USN) during the American Civil War, when it fought the Confederate States Navy (CSN). The term is sometimes used carelessly to include vessels of war used on the rivers of the interior while they were under the control of the United States Army, also called the Union Army.
USS Conestoga, a converted gunboat that served on the Mississippi River.
Part of the crew of USS Monitor, after her encounter with CSS Virginia (ex-USS Merrimack)
Crewmen of USS Lehigh in 1864 or 1865.
"The Splendid Naval Triumph on the Mississippi, April 24th, 1862" (Currier and Ives lithograph)
The capture of New Orleans during the American Civil War was a turning point in the war that precipitated the capture of the Mississippi River. Having fought past Forts Jackson and St. Philip, the Union was unopposed in its capture of the city itself.
Major General Mansfield Lovell, CSA, would not surrender the city.
Farragut's flagship, USS Hartford, forces its way past Fort Jackson.
Flag Officer David G. Farragut who commanded the Union fleet that broke through to New Orleans.