FRONTLINE: return of the taliban: introduction | PBS

After 9/11, Pakistani President Pervez Musharraf pledged his country's support to America's fight against Al Qaeda and the Taliban, but he has struggled to control his own military and intelligence services -- which have long supplied money, weapons and military advisers to radical fighters in Afghanistan. For Pakistan, the benefits of cooperation with America have been clear. As President Musharraf tells FRONTLINE, "Defense cooperation has increased between the United States and Pakistan, and ... the debt relief that we got will account for about $4 to $5 billion."