Worth re reading AD's Post 336. In it he said:
I just had another look at the Army link re the HNA :
It states:
http://www.army.gov.au/HNA/default2.htm
It seems that the battlegroup organisation given in the example pretty well provides what FT is suggesting. All that would be needed would be for one to be set up on a rotational basis, with its attached units, along the lines of the example given, to act as the RDF. Perhaps though this is larger than is needed for the RDF if it is only a company based group at present.
It seems to me that if the battlegroups can be brought together quickly the army already has the capacity it needs to meet operational commitments and respond to emergencies, or at least it will have when the HNA becomes a reality!
Cheers