What is the function of ID friend or foe (IFF)?

The primary function of Identification Friend or Foe (IFF) is to provide electronic identification of targets. IFF is a critical system used in military operations to distinguish between friendly and hostile forces, thereby enhancing situational awareness. It accomplishes this by using transponders that send out signals indicating the identity of the platform, which is then received and interpreted by friendly units. This process is essential for reducing the risk of friendly fire incidents and enhancing coordination among allied forces.

For military aircraft, vessels, and ground units, IFF systems utilize specific codes and responses that can be recognized by various defense systems. This electronic identification helps inform operators whether to engage a target or take other actions, contributing to the effectiveness and safety of operations.