UPDATE 1-Japan says it hopes Mattis visit strengthens regional security

U.S. Defense Secretary Jim Mattis shakes hands with Japan’s Defense Minister Tomomi Inada during their meeting at the Defense Ministry in Tokyo, Japan, February 4, 2017. U.S. Defense Secretary Jim Mattis speaks to Japan’s Defense Minister Tomomi Inada during their meeting at the Defense Ministry in Tokyo, Japan, February 4, 2017.