(various backdated issues relating to Caledonian Airways and the "Second Force" concept, 1961-1970)

(various backdated issues relating to BUA and the "Second Force" concept, 1960-1970)

The 332d AEG evolved and grew to reflect the Aerospace Expeditionary Force (AEF) concept of a consolidated force in a forward location.

In the mid eighties the USAF decided to re-equip the Air National Guard units with more modern equipment as part of the "Total Force" concept.

A new "Single Force" concept will see PDF Units having Reserve components, rather than a separate stand-alone Reserve.

In early 2003, the Reserve Response Force (RRF) concept was being rolled out to 4th Brigade.

The Air Expeditionary Force (AEF) concept was developed that would mix Active-Duty, Reserve and Air National Guard into a combined force.

The prime causes for the failure of the "Second Force" concept and BCal's demise were:

The role of numbered air forces was again changed in 2006 with the implementation of the Component Air Force (C-NAF) concept.

(various backdated issues relating to British Caledonian and the "Second Force" concept, 1969-1988)