While the final outcome of most wars is generally decided on land, occasionally a sea battle can have a profound impact on history as well. More than one empire’s plans for further expansion has been waylaid by a catastrophic sea battle, and even entire kingdoms have been brought to their knees because of some fiasco at sea. Of course, not all of the most important sea battles are large; the Battle of Jutland, for example, was one of the largest naval battles in history but it had little impact on the course of the First World War, while the small engagement between just two ships, the U.S.S. Monitor and the C.S.S. Virginia during the Civil War forever changed the face of naval warfare, making some battles game-changers in terms of tactics and technology. And so, without further ado, here are my candidates for the most important or game-changing naval battles in history.