The group was originally activated in 1943 as the 494th Bombardment Group.

With the outbreak of the Korean War, the group was activated on 1 May 1951.

As a result of the Korean War, the group was activated on 1 May 1951.

The group was constituted on 25 June 1943 and activated on 1 July.

In 1947 the group was activated as a reserve unit.

Play is based upon initiative, and standard playing cards randomly determine which groups are activated when during each game turn.

Advertising, incentive sales and other departments will report to him when the new group is officially activated on Monday.

The group was constituted on 30 March 1943 and activated on 1 April.

The group was activated in 1991 as the 91st Operations Group.

The group was activated on 1 April.