skos:altLabel | - 31st Fighter Group
- 31st Pursuit Group
- 31 FW
- 31st Air Expeditionary Wing
- 31st Comptroller Squadron
- 31st FW
- 31st Fighter Escort Wing
- 31st Fighter Escort Wing/Group
- 31st Fighter wing
- 31st Fighter-Escort (later Strategic Fighter) Wing
- 31st Fighter-Escort Wing
- 31st Strategic Fighter Wing
- 31st Strategic Reconnaissance Group
- 31st Support Group
- 31st TFW
- 31st Tactical Fighter Wing
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