section_path: History/Civil War
section_name: Civil War
paragraph_text: Civil War
  
  Control of the river was a strategic objective of both sides in the American Civil War, forming a part of the U.S. Anaconda Plan. In 1862, Union forces coming down the river successfully cleared Confederate defenses at Island Number 10 and Memphis, Tennessee, while Naval forces coming upriver from the Gulf of Mexico captured New Orleans, Louisiana. One of the last major Confederate strongholds was on the heights overlooking the river at Vicksburg, Mississippi; the Union's Vicksburg Campaign (December 1862–July 1863), and the fall of Port Hudson, completed control of the lower Mississippi River. The Union victory ended the Siege of Vicksburg on July 4, 1863, and was pivotal to the Union's final victory of the Civil War.