Afghan and U.S. officials said Sunday they had agreed to the broad outlines of an accord governing the long-term American presence in Afghanistan after the Western combat role ends in 2014. The heads of the two countries' negotiating teams, Afghanistan's national security advisor Rangin Spanta and U.S. Ambassador Ryan C. Crocker, initialed a draft of the "strategic partnership agreement" that the two sides have said they plan to finalize prior to a landmark NATO summit in Chicago next month. That gathering is expected to provide a blueprint for the final phase of the decade-long war in Afghanistan.