President Bush is in Singapore for trade talks ahead of an economic summit of Asia-Pacific leaders in Vietnam.
Mr. Bush is scheduled to meet with Singapore's leaderson Thursday, and he will give a speech that aides say will set the tone for his entire trip to Asia that also includes a stop in Indonesia.
White House officials say Mr. Bush will discuss how the United States and Asian nations can work together to fight poverty, disease, terrorism and create energy security.
The Asian Pacific Economic Cooperation summit in Vietnam is intended to focus on economic issues. But terrorism and North Korea's nuclear program also are expected to figure high on the agenda.
En route to Asia, the president made a brief stop Wednesday in Moscow where he met with Russian President Vladimir Putin.
White House officials called the meeting a "social visit." But following the meeting, the Kremlin issued a statement that said the two leaders were in agreement over Russia's entry into the World Trade Organization.
Mr. Bush and Mr. Putin are scheduled to hold bilateral talks Sunday on the sidelines of the APEC summit.
Meetings by ministers from APEC's 21 member economies have already begun in Hanoi. The heads of state will assemble for dinner on Friday, then spend Saturday and Sunday in talks.
On Monday, Mr. Bush travels to Indonesia for talks with that nation's president. He returns to Washington late Tuesday after stopping in Hawaii to meet with U.S. troops.