 Usually involving the rescue of downed air crew by ground forces with the assistance of fighters and helicopters.The exercise was first held in 1992 following NATO intervention in Bosnia and Herzegovina, originally called exercise DIATIT, the first three letters coming from the word DIANA, 322 Tactical Training Evaluation and Standardization (TACTES) Squadron's nickname (the organizing unit) and the last three letters coming from the words Tactical Integrated Training.It changed its name to Frisian Flag in 1999.