The United States military has historically done a very good job of instilling mental toughness in its people. Military officers in particular require stringent mental toughness in order to perform and lead to their utmost under pressure. The U. S. Navy has a time-tested, rigorous system of ingraining that mental discipline in its Naval officers. This article examines how this is accomplished, starting at the United States Naval Academy at Annapolis. 2714 words.