668 Squadron
| Dates | Location | Higher Formation/Remarks |
| . | . | . |
| . | 668 Aviation Squadron | . |
| ?? | England: | . |
| . | c1969: Persian Gulf: | Souixs and Beaver |
| . | 1971: Disbanded | . |
| . | . | . |
| . | 668 (Training) Squadron AAC | . |
| 1990.06 | England: Reformed at Middle Wallop | School of Army Aviation |
| . | 1 Sep 94: 2nd Regiment AAC (Training) formed | 2nd Regiment AAC (Training) |
| . | Provides Phase 2 and 3 signals, groundcrew and tactical refuelling training, Junior and Senior Command, Leadership and Management (CLM) courses and the Ground Support Commanders Course | . |
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