President Bush has wrapped a five-nation Africa tour with a pledge to prevent international terrorists from using the continent as a base.
Speaking in the Nigerian capital, Abuja, Saturday, Mr. Bush said he will not allow terrorists to use Africa as a springboard "to threaten the world."
Mr. Bush has proposed spending 100 million dollars to help governments in east Africa fight terrorist organizations such as al-Qaida.
Nigeria was the last stop on President Bush's five-day Africa tour that also took him to Senegal, South Africa, Botswana and Uganda.
In Abuja, Mr. Bush also pledged to help restore peace in war-torn Liberia, provide funds for Africa to fight the AIDS pandemic and promote economic development on the continent.
The United States is under mounting pressure to send peace-keeping troops to Liberia but Mr. Bush says he has not determined whether his offer to help would mean sending US troops to the country.
Mr. Bush praised Nigeria's President Olusegun Obasanjo's role in efforts to bring peace in Africa, including Liberia. He also praised the Nigerian leader for his efforts to fight AIDS directly with what he called an "honest approach." Throughout his African tour, the president has applauded leaders who have spoken out openly about AIDS -- often a hidden topic in Africa.
And he promised assistance to nations that govern justly, root out corruption and invest in the health and education of their people.
Mr. Bush left Nigeria Saturday and is due back in Washington later in the evening.