Japan's new prime minister will make his diplomatic debut next week with a visit to the United Nations and an economic summit meeting in Pittsburgh, officials said Thursday. Prime Minister Yukio Hatoyama is also hoping to meet with President Barack Obama. The Japanese leader, who took office Wednesday, has said he wants to review the status of America's military presence in Japan. Hatoyama was to leave for New York on Monday to address the General Assembly of the United Nations and then travel on to Pittsburgh for the Group of 20 economic meeting. Officials were trying to arrange a meeting with Obama while Hatoyama is in the U.S., but said they had not finalized if or when that would happen, according to a report of The Associated Press.