If I recall correctly, in the UK you had a choice to become RAF reserve for longer - in which case you got paid a bit each year, but had to do refresher training each year too (to keep your skills fresh). I think it follows with all our armed forces in much the same way - although it may only be certain grades/skills that get the offer...
Don't know if they still do it that way or not or if it's only 5 years as you say... I'd be surprised if it is, to be honest - ok, after 5 years you'll not be front-line material, but you'll still know the basics of the job so could be reactivated as a training instructor...
Don't know if they still do it that way or not or if it's only 5 years as you say... I'd be surprised if it is, to be honest - ok, after 5 years you'll not be front-line material, but you'll still know the basics of the job so could be reactivated as a training instructor...