Afghanistan's first democratically elected president, Hamid Karzai, has been sworn in under heavy security in Kabul.
In his inaugural speech, the new Afghan president thanked the United States, the United Nations and the international community for their support.
Mr. Karzai received a standing ovation.
Among the guests were U.S. Vice President Dick Cheney and Defense Secretary Donald Rumsfeld, who earlier on Tuesday joined in telling US troops in Afghanistan that the military operation is not over, as freedom still has enemies there.
At a news conference, Mr. Cheney offered warm praise for Mr. Karzai, and promised continued U.S. support for Afghanistan, regardless of what problems it may face.
Russia also has welcomed the inauguration, saying it is the beginning of a united, independent and democratic Afghanistan.