Afghanistan’s New Deal -- By ZALMAY KHALILZAD

The United States is fully behind the United Nations in the mission. Afghanistan is important not only because it was the origin of the attacks of 9/11 but also because it is the keystone of the geopolitical stability of Central and South Asia. Moreover, success in Afghanistan will be a major step in helping to create security, stability and progress in the broader Middle East, which is the defining challenge of our time.