401st (original) (raw)

401st may refer to: * 401st Air Expeditionary Group, provisional United States Air Force unit assigned to the United States Air Forces in Europe * 401st Air Expeditionary Wing, inactive unit of the United States Air Force * 401st Army Field Support Brigade, forward support brigade of the United States Army * 401st Brigade, an armored unit of the Israeli Defence Forces * 401st Squadron (disambiguation), several military units