President Bush has left Washington for a weeklong trip to Asia. The president will visit Japan, South Korea, China and Mongolia during the trip, and hold bilateral meetings with the leaders of those countries and two others, Indonesia and Malaysia. On his way to Asia, Mr. Bush is due to stop in the U.S. state of Alaska later on Monday to give a speech focused on the war on terror. The centerpiece of the president's trip will be his attendance at the Asia-Pacific Economic Cooperation Summit in South Korea. Leaders of the 21 APEC nations are expected to discuss regional security, the threat of a bird flu epidemic, and the next round of talks on a global trade pact. Those talks have been stalled over the European Union's reluctance to cut farm subsidies.