RP, not at all. You have succinctly stated potential requirements in s Strategic Defence Review.
The point though is that a force that has grown around Herrick - Chinook and C17 - may well be
far in excess of the assets needed, or affordable, to meet the strategic requirements.
You mention
The likes of BATUS and BATUK, the Falkland Islands and Cyprus?
I presume these have not been ignored for the last decade
thus the assets needed for Afg are in excess of those needed for the other tasks.
If you make a case that post-Herrick all the existing assets will enable the other tasks to be met with out stretch or over-stretch then the treasury would immediately seek cost saving to tight up the slack.
The E3 force may be a case in point with airframes bleeding away.