Costa Rica has never had a war, but once it almost did.  The armies of Costa Rica and Panama were facing each other on their borders.  A new recruit,  farmer Ramirez, was given a bugle.  The poor fellow was so nervous that instead of CHARGE, he intoned RETREAT.  The two armies broke into laughter, the war was called off  and Retiro (Retreat) Ramirez became a national hero in two countries!