Obama to explain why U.S. is in Afghanistan , its interests there and how he made decision . Official : The request is expected to come during a December 7 meeting at the alliance 's headquarters in Brussels , Belgium . Papers seeking orders to deploy 1,000 Marines next month are expected Thursday . NATO allies will also be asked to send more troops , officials say . Comment:
Obama to explain why U.S. is in Afghanistan , its interests there and how he made decision . Official : Papers seeking orders to deploy 1,000 Marines next month are expected Thursday . NATO allies will also be asked to send more troops , officials say . Comment: