Genuine question here - is Afghanistan considered a high-end war zone?
It is for an SAS trooper, which is why the Kiwis have awarded a VC and we've awarded two VCs.
Genuine question here - is Afghanistan considered a high-end war zone?
AdA, what you're describing sounds like how Australia fought Vietnam. However the reserve unit isn't really formed, when it comes off its operational deployment it is more or less disbanded; long timers sent off on other postings, courses, remusterings, promotions etc, short timers discharge and then after some months the unit will be reformed from scratch and spend a year training for its next deployment.
The simplest example is SSBN. To insure that you have one on patrol at all times most nations assumed a need for 4. Of course you only need three crews, but most countries prefer to have a crew for each boat.