AP® United States History · Unit 5 · Topic 5.8

The West, the Blockade, and Total War

The Union won the Civil War by executing a strategy, not just owning more stuff: blockade the coast, seize the Mississippi to split the Confederacy, then march through its interior to destroy its will and ability to fight.

Everyone watched Virginia because it held both capitals, Washington and Richmond, and the biggest battles. But Virginia was a stalemate for years. The war's outcome actually turned on the West and the coast, where the Union's plan had room to work. General Winfield Scott's Anaconda Plan called for a naval blockade of Southern ports to choke off cotton exports and gun imports, combined with a campaign down the Mississippi River to cut the Confederacy apart. It was slow and unglamorous, which is exactly why it got mocked early on and why it worked over years.

Vicksburg, Mississippi was the last Confederate stronghold on the river. When Ulysses Grant took it in July 1863, after a long siege, the Union controlled the entire Mississippi. That sliced the Confederacy into an eastern half and a western half, Texas, Arkansas, and Louisiana, and the western half could no longer send soldiers, horses, or supplies east to the armies that needed them. A year later William Tecumseh Sherman applied the same logic to land warfare directly: after taking Atlanta in September 1864, he marched to Savannah and then up through the Carolinas, tearing up railroads, burning supplies, and wrecking the farms and infrastructure that fed Confederate armies. This was total war, aimed at the South's capacity to fight, not just its soldiers.

None of this happened automatically from the Union having more factories and more people. Resources only became victory because Grant, Sherman, and Lincoln turned them into a coordinated plan sustained for four years against an enemy fighting fiercely on its own ground. That link between material advantage and actual strategy is what carries into Reconstruction, where the postwar question becomes what to do with a South whose economy and infrastructure total war had deliberately shattered.

Key terms

Anaconda Plan
The Union strategy to blockade Southern ports and seize the Mississippi River to strangle the Confederacy's trade and supply lines.
Vicksburg
The Mississippi fortress city whose fall to Grant in July 1863 gave the Union full control of the river and split the Confederacy in two.
total war
A strategy of destroying an enemy's economy, infrastructure, and civilian will to fight, not just its armies.
Sherman's March
William Tecumseh Sherman's 1864-1865 march from Atlanta to Savannah and through the Carolinas, destroying supplies and railroads.
blockade
A naval operation sealing off a coastline to stop the movement of ships, goods, and supplies.

Watch it explained

  1. How it worksWalk me through the Anaconda Plan as a blockade plus a river campaign down the Mississippi.
  2. Worked exampleTrace Sherman's march from Atlanta to Savannah to the Carolinas on a map.
  3. How it worksHow does cutting the Confederacy in two at Vicksburg change what the South can still fight with?
  4. Common mistakeWhy isn't the Union's advantage in resources enough on its own to explain the outcome?

Check yourself

Your turn1 of 2
The Union's capture of Vicksburg in July 1863 gave it full control of the Mississippi River, physically splitting the Confederacy into two separated halves that could no longer easily reinforce or resupply each other. What did this specific outcome most directly do to the Confederacy's ability to keep fighting?

End of topic.