skos:altLabel | - 121st
- 121st Expeditionary Fighter Squadron
- 121st Fighter Interceptor Squadron
- 121st Fighter-Interceptor Squadron
- 121st Liaison Squadron
- 121st Observation Squadron
- 121st Security Forces Squadron
- 121st TFS
- 121st Tactical Fighter Squadron
- 121st Fighter (later Fighter-Interceptor, Tactical Fighter, Fighter), Squadron
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