Michael T Hallahan enlisted in The Parachute Regiment in Central London in August 1982.After completing P Company he was posted to A Company (Coy), The 3rd Battalion, The Parachute Regiment (3 PARA).
Private Hallahan served with 3 PARA until May 1992. During his service he served in A, B and D Coys. He served in America, Belize, Cyprus, The Falkland Islands, France, Kenya, Northern Ireland, and Norway. He was Mentioned in Despatches while serving on Operation Banner (Northern Ireland).
Pte Hallahan re-enlisted into 1 Coy, 10th Battalion, The Parachute Regiment (V) (10 PARA (V)) in 1992. Corporal Hallahan retired from 10 PARA (V) in 1999.