HISTORIC SIGNING U.S. Defense Secretary Chuck Hagel and Secretary of State John Kerry sign official documents to revise the 1997 Guidelines for U.S.-Japan Defense Cooperation, increase security and defense collaboration in the Asia-Pacific region and beyond, and advance the realignment of American troops in Japan, in Tokyo, Oct. 3, 2013. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 218953-J-TSE27-249.jpg Photo Gallery