LONDON, October 24, SPA -- Afghan President Hamid Karzai was due to address students and academics at the Oxford Union debating society later today, the union said. Later in the day, the Afghan leader was expected to travelto Buckingham Palace to meet Queen Elizabeth II and PrinceCharles. Karzai is due to hold talks Thursday with PrimeMinister Gordon Brown on Britain's role in rebuildingAfghanistan and training its army. Karzai, who arrived in London on Sunday, is in the countryfor his first visit since Brown became prime minister.--SPA www.spa.gov.sa/493032