Final answer:
The Union blockade in the South aimed to prevent Confederate trade, leading to economic problems for the Confederacy.
Step-by-step explanation:
The blockade established by the Union in the South aimed to prevent Confederate trade. The Union's naval blockade effectively cut off the South from receiving essential goods and supplies, leading to severe shortages and economic problems. This blockade was a major factor in the Confederacy's economic devastation during the Civil War.