Task Force (TF) Papa Bear was activated in Saudi Arabia on 31 December 1990. During Operation Desert Shield, TF Papa Bear conducted defensive operations and trained to break two complex obstacle belts constructed by the Iraqis in southern Kuwait. Major units comprising TF Papa Bear were:
- Headquarters Company, 1st Marine Regiment
- 1st Battalion, 1st Marine (1/1)
- 3rd Battalion, 9th Marines (3/9)
- 1st Tank Battalion (1st Tanks)
- A Company, 1st Combat Engineer Battalion (CEB)
- A Company, 7th Engineer Support Battalion
- B and C Companies, 3rd Amphibious Assault Vehicle (AAV) Battalion
- 1st Platoon, Bravo Battery, 3rd Light Anti-Air Defense Battalion (DS)
- 1st Battalion, 11th Marines (1/11) (DS)