Creating an integrated world community in which nations can discuss global issues such as security and aid for developing countries together with the United Nations is one of the biggest challenges for the 21st century, former U.S. President Bill Clinton said Tuesday in Tokyo.

"We have made for ourselves in the 21st century a world that most people characterize with the term globalization," Clinton said in a lecture on globalization at the United Nations University. "But I prefer the word interdependence, because it clearly conveys that there is more than economics at work."

Clinton, 55, came to Japan after attending East Timor's independence ceremony Sunday.