U.S. Secretary of State Condoleezza Rice and British Foreign Secretary David Miliband arrived in Afghanistan on an unannounced visit Thursday, carrying a joint message of support and prodding to Afghan officials, CNN reported. Rice and Miliband flew together to the Afghan capital from London. They were seeing Afghan President Hamid Karzai and other officials. The two made clear they expect cooperation from the Karzai government. "The Afghan government has responsibilities, too," Rice told reporters. "This is a two-way street, and I think everybody has to step back and concern ourselves with the Taliban." On his part, Miliband: "We've got responsibilities that we're determined to live up to and obligations that we're determined to live up to and ditto for the Afghan authorities. That's something we want to follow through and at the heart of both our strategies is the belief this has to be done with the Afghan government and in fact led by the Afghan government, with our support."