Most of the Navy’s vessels were on duty in foreign waters and only three or four ships were available for active duty. Lincoln’s order of a naval blockade struck some of his staff as impractical. The Union’s first truly significant victory, Grant’s capture of Fort Donelson and Fort Henry in 1862 was enabled by Civil War ships and Civil War marines.

In 1861 Gideon Welles was appointed as Secretary of the Navy and was ordered by Lincoln to quell the rebellion with an enormous naval blockade of the Southern coast and both the blockade and gaining control of the Mississippi would be keys to the Union‘s victory. The Confederacy had no navy at all in 1860 and the Union Navy was in dismal shape. The role of the Federal and Confederate Civil War naval ships in the war is all the more remarkable when you consider the scarcity of battle worthy vessels owned by either side at the start of the war.

The American Civil War is not generally thought of as a naval war, but Civil War ships of both sides played a significant role in the conflict.

Civil war union navy ship classes