* Monitor, the Union's own ironclad
* Merrimac, unusual Confederate ship covered in metal plates, that attacked and sank several Union ships near Hampton Roads, Virgina
* ^^First engagement ever between two iron-clad naval vessels.^^ On March 9, 1862, the two ships battled for five hours, ending in a draw
* Marked a turning point in naval warfare, wooden ships would be replaced by ironclad ones