More precisely - Why can't some (or all) of those functions be delivered by civilian organisations?
I suggest that there are many civilian organisations that could deliver all these services for much less cost and with more mission reliability.
As you suggested it, go on then. Name some? Which civilian organisations that can do
LR ASW? And
LR ASuW? These are military roles with a military end result - sinking boats. Which UK civilian organisations can do
LR SAR (remembering that "our" SAR region goes to 30W)?
