The United States seeks to modernize the command structure of its decades-old security alliance with Japan to deal with a "much more assertive China" including toward Taiwan, U.S. Ambassador to Japan Rahm Emanuel said Friday as the two countries look to discuss the issue at an upcoming summit in Washington.Speaking ahead of Japanese Prime Minister Fumio Kishida's visit to the United States next week as a state guest, where a series of agreements are expected to showcase the robust ties of the close allies, the ambassador told reporters, "We are literally in the first chapter writing a new e…READ FULL ARTICLE