I don’t know what being a volunteer service has to do with it.
I don’t think that anyone has had to be drafted into the air force, once they were pulled from army control. The navy hasn’t needed a draft since their big combat era of WWII ended.
Everybody that works on vehicles and aircraft in the military (and in civilian life) has to do it regardless of the climate at their post, it is not limited to the air force and the navy.
Being an all-volunteer military has everything to do with the arguments you’re presenting. If a person doesn’t want to hump a 60lb pack or strip naked to cross a river, there are alternatives. None of which make their service any less honorable.
SZ