Those taking part included a brigade size army force, members of 815 Naval Air Squadron, sailors on HMS Centaur, and RAF aircrew. In 1967 eligibility was widened to include those who served in a supporting role in Aden.
Those involved in the event were a brigade-sized military force, personnel from 815 Naval Air Squadron, sailors aboard HMS Centaur, and RAF pilots.  In 1967, participation criteria were broadened to include individuals who had served in support roles in Aden.