The Union was able to stop Confederate supplies coming from Florida
Explanation:
During the Civil War, Florida whose population was largely made up of slave workers was unable to contribute much man power to the millitary (only about 15,000 men), but was able to contribute provisional goods to the Confederate army. When attention of the north was called to this by fleeing slaves and defecting Confederate soldiers, a blockade was imposed to prevent the supply of provisional goods from Florida by the Union army.
