Resolute Support is a NATO-led, non-combat mission. It was launched on January 1, 2015, following the conclusion of the previous NATO-led International Security Assistance Force (ISAF) mission, and the assumption of full security responsibility by the Afghan National Defense and Security Forces (ANDSF). Its purpose is to help the Afghan security forces and institutions develop the capacity to defend Afghanistan and protect its citizens in a sustainable manner. The mission performs supporting functions in several areas. These include: operational planning; budgetary development; force generation process; management and development of personnel; logistical sustainment; and civilian oversight (in order to ensure the Afghan security forces and institutions act in accordance with the rule of law and good governance).