Adm. Mike Mullen signs a guestbook onboard the Russian corvette Steregushchi. Chairman of the Joint Chiefs of Staff Adm. Mike Mullen, U.S. Navy, signs a guestbook onboard the Russian corvette Steregushchiy in Petersburg, Russia, on May 7, 2011. Mullen is on a three-day trip to the country to meet with Chief of the General Staff of the Armed Forces of Russia Gen. Nikolai Makarov. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 137065-P-NRS54-292.jpg Photo Gallery