The long-standing presence of the United States in Afghanistan is coming to an end by April 2021 as a result of the February 29, 2020 US-Taliban Agreement. It was the 9/11 syndrome that increased the interest of the US and its allied partners in Afghanistan. The main objectives of the study include the US interest in Afghanistan, maintenance of security inside Afghanistan by the United States and its allied partners, and the current prospects of peace settlement in Afghanistan. The drawdown of the US forces from Afghanistan started in 2014 and complete withdrawal is going to take place by April 2021 whereby responsibility of the security of Afghanistan would completely shift to the Afghan National Defense and Security Forces and the role of the US troops catering to training, assisting and supporting the ANDSF would diminish.