The United States is trying to convince its allies in NATO to provide 10,000 extra soldiers to Afghanistan as President Obama ponders an escalation in American troops. Officials tell The New York Times that countries only seem willing to provide less than half the requested amount. Obama will announce his new Afghan war policy on Tuesday. With NATO's help, the president could close the gap between the number of soldiers he'd like to send and the number that Gen. Stanley McChrystal has requested. In Britain, where the war is increasingly less possible, the government seems willing to send 500 more troops. Canada and the Netherlands have begun discussing plans to leave Afghanistan entirely.