President Bush has arrived in Sydney, Australia for an Asia-Pacific Economic Cooperation summit after making a brief visit to Iraq.
Mr. Bush is expected to discuss the war in Iraq in a series of talks with world leaders on the sidelines of the summit, which begins later this week.
President Bush's first meeting will be with Australian Prime Minister John Howard, who has been a key US ally throughout the Iraq conflict.
Other issues likely to be raised in Mr. Bush's meetings are the situations in Iran, North Korea, Sudan's Darfur region and Burma.
At the APEC forum, world leaders and officials also will discuss climate change and global trade.
Earlier Tuesday, about 200 anti-war activists gathered in Sydney to protest Mr. Bush's Iraq policies. Thousands more are expected to join an anti-war rally on Saturday.
Mr. Bush is due to meet Australian opposition leader Kevin Rudd on Thursday. Rudd has promised to withdraw Australian troops from Iraq if he wins an election due later this year.
Australian police have launched the country's largest-ever security operation to protect the visiting APEC leaders. Police say they will use force if necessary to control any violent protests.
Information for this story is provided by AFP.