U.S. defense chief, in Japan, reaffirms commitment to treaty

By Phil Stewart and Kiyoshi Takenaka TOKYO (Reuters) - U.S. President Donald Trump's defense secretary reaffirmed America's commitment to its mutual defense treaty with Japan on Friday during a meeting with Prime Minister Shinzo Abe in Tokyo. Jim Mattis, on his first trip since taking over the Pentagon, appeared eager to reassure Japan of U.S. resolve, after an election campaign that saw Trump question the value of U.S. alliances. "I want to make certain that Article 5 of our mutual defense trea