TOKYO, JAPAN - OCTOBER 3: U.S. Secretary of Defense Chuck Hagel, (L) and U.S. Secretary of State John Kerry, (2nd L) exchange signed documents with their Japanese counterparts, Japanese Foreign Minister Fumio Kishida, (2nd R) and Japanese Defense Minister Itsunori Onodera, after amending the 'Guam International Agreement' (GIA) at Iikura Guest House on October 3, 2013 in Tokyo, Japan. Hagel spent time in South Korea for celebrations marking the 60th anniversary of the ending of the Korean War before heading to Japan for ministerial meetings. (Photo by Jacquelyn Martin-Pool/Getty Images)
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