It was a way of restricting the Confederacy from receiving supplies. It also limited transport between the coastal areas, forcing them to use their rail lines, which were not as available in the South.
Union blockade happened in 1861.
TO blockade southern ports
the union blockade of southern shipping is located on the east coast of America
The blockade was used by the Union Soldiers to blockade southern ports so that they could not import or export goods.
the strategy that the union used was called the anaconda plan the anaconda plan was that the union would surround the confederate on all sides
The Union navy was mostly used to blockade principal southern ports
To stop them importing war supplies in exchange for their plentiful cotton.
They were called Blockade Runners.
Union naval blockade
1861
The most alarming confederate threat to the Union blockade was the ironclad Merrimack.
They are called Blockade Runners