Special Forces (SF) Soldiers use various biometric identification systems in SF operations. Biometric applications are fundamental to a wide array of SF operational activities, including, but not limited to, the growing field of SF sensitive site exploitation (SSE) and the range of unit protection activities. SSE applications include the identification of enemy personnel and cell leaders in a counterinsurgency (COIN) environment following tactical operations, particularly during direct action missions. Unit protection applications include maintaining databases on the identities of both United States Government (USG) and local national personnel.