TOKYO - OCTOBER 21: US Secretary of Defense Robert Gates (L) shakes hands with Japanese Prime Minister Yukio Hatoyama (R) prior to their meeting at the latter's official residence on October 21, 2009 in Tokyo, Japan. Gates is on the second day of his two-day visit to the country to discuss key issues with the nation's new leader, such as Tokyo's decision to end the Maritime Self-Defense Force's refueling mission in the Indian Ocean and the planned relocation of the US Marine base in Okinawa.