Surrendered Enemy Personnel

Surrendered Enemy Personnel (SEP) is a designation for captive enemy soldiers (similar to Disarmed Enemy Forces). It was most commonly used by British forces towards German forces in Europe, and towards Japanese and associated forces in Asia after the end of World War II. On March 1, 1947, the U.S. stated that the SEPs should be regarded as POWs and be treated in accordance with the Geneva Conventions.

Source: Wikipedia — Surrendered Enemy Personnel (CC BY-SA 4.0)