What was the main reason the Union set up a blockade along the Southern coasts? so Confederate soldiers couldn’t access the North by sea to make it harder for the South to import and export goods so Union soldiers could make sneak attacks on the South at night to make it easier for Union spies to cover a large area of the South

During the Civil War, Union forces established a blockade of Confederate ports designed to prevent the export of cotton and the smuggling of war materiel into the Confederacy.

a strategy created by Union General Winfield Scott in 1861, early on in the Civil War. It called for strangling the Southern ... Union plan to cut the South in half making it difficult to supply the troops. Nat Turner Rebellion.

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