Keywords: US Navy 101210-N-5538K-050 The Los Angeles-class attack submarine USS Houston (SSN 713) takes part in a photo exercise at the conclusion of exercis.jpg en PACIFIC OCEAN Dec 10 2010 The Los Angeles-class attack submarine USS Houston SSN 713 takes part in a photo exercise at the conclusion of exercise Keen Sword 2011 The exercise enhances the Japan-U S alliance which remains a key strategic relationship in the Northeast Asia Pacific region Keen Sword caps the 50th anniversary of the Japan - U S alliance as an alliance of equals U S Navy photo by Mass Communication Specialist 3rd Class Casey H Kyhl/Released 2010-12-10 101210-N-5538K-050 Navy http //www navy mil/view_image asp id 95219 U S Navy photo by Mass Communication Specialist 3rd Class Casey H Kyhl PD-USGov-Military-Navy USS Houston SSN-713 Keen Sword 2011 |