Player Embed Code: <iframe width='500' height='300' scrolling='no' frameborder='0' style='border: none; overflow: hidden; width: 500px; height: 300px;' allowtransparency='true' src='https://www.dvidshub.net/video/embed/639252'></iframe> Download Embed Share Keen Sword Defense.gov Nov. 9, 2018 | 1:00 Keen Sword is a military exercise that U.S. and Japanese forces conduct every other year. This year’s exercise took place throughout Japan and the Mariana Islands. This year, two ships from the Royal Canadian Navy participated for the first time.