Recently police in Pakistan, acting on a tip from US intelligence, rounded up 50 al Qaeda suspects in a dozen different places, including Bin Laden's operations director Abu Zabada. President Bush said the US is closing in on al Qaeda leaders, adding: "Ask Zabada what it's like to be on the wrong side of America." The allied offensive in Afghanistan involves Royal Marines, American and Afghan troops. A large percentage of the marines are in non-combat support roles and Pentagon officials would not say whether British forces would be used in any cross-border operation.