Union+blockade+sc

=Union Blockade= The first action of the Union Navy in the civil war was the blockade of southern ports. It was an effort to reduce the South's ability to trade with the rest of the world. To prevent them from getting war material and manufactured goods. At first the Union Navy only had 35 vessels to patrol 189 harbors and 3,000 miles of coast. The South got around the blockade by using blockade runners, which were the fastest ships available.