Nearly everyone is tracking that the Bilateral Security Agreement (BSA) was signed by representatives of the Afghan government and the United States. This set the stage for the Coalition to keep a residual force in Afghanistan beyond December 2014 to conduct the Resolute Support mission - Security Force Assistance and Counter-terrorism. However, less people are aware that concurrent to the signing of the BSA there was a Status of Forces Agreement (SOFA) signed between Afghanistan and NATO. The long title of the SOFA is "Agreement Between the North Atlantic Treaty Organization and the Islamic Republic of Afghanistan on the Status of NATO Forces and NATO Personnel Conducting Mutually Agreed NATO-Led Activities in Afghanistan". You can read or download a copy of the NATO SOFA on the website of the Ministry of Foreign Affairs of Afghanistan.