MAPUTO, Mozambique (AP) – African leaders launched a campaign to get every child in school by 2015, and Britain responded Monday by pledging $15 billion in education aid to developing countries over the next decade.

British Treasury chief Gordon Brown joined Mozambique President Armando Guebuza, former South African President Nelson Mandela and other African leaders in launching the Free Education For All initiative.

Brown’s announcement follows a pledge by Britain and other members of the Group of Eight industrialized nations at their summit last year to double aid for Africa, the world’s poorest continent.

“We must keep our promises,” Brown said in the Mozambique capital, Maputo.

More than 100 million children worldwide do not go to school because of a lack of teachers and schools, according to the Global Campaign for Education, an alliance of teachers unions and aid groups. The campaign urged other G8 countries, including the United States, to make up a shortfall of $10 billion needed to make basic education for all a reality.

Aid groups and anti-poverty activists welcomed Britain’s pledge and urged other wealthy nations to follow suit.