Field Manual (FM) 3-05.130, Army Special Operations Forces Unconventional Warfare, establishes keystone doctrine for Army special operations forces (ARSOF) operations in unconventional warfare (UW). It is based on lessons learned from both historical and contemporary UW operations. It is also based on existing, long-standing Army Special Forces (SF) UW doctrine; recently developed doctrine, such as counterinsurgency (COIN); and emerging affiliated concepts, such as irregular warfare (IW).