irishdraught, our RAF Reserves (Aux) are pretty much deployed six months after they finish their professional training.
the regulars are so short (staffed lol) and subject to such frequent deployments, the reserves are picking up an awful lot of the operational task. our sqn carries 25% of the operational commitment of the trade, with at least 30 on active service at any given time. some are on their 3rd, 4th or even 5th operational deployment. many miss christmas, birthdays etc etc, just tlike thir regular counterparts.
re - 'getting out of' or turning down mobilisations. you have certain rights of appeal in certain circumstances, (as does your civilian employer) but essentially you can't just just say 'nah, i don't fancy it'. the only reason the reserves exist is to provide manpower - if you aren't willing to actually do the job when they need you to, please don't bother joining lol. the days of the weekend warriors are long gone - these days it is a pretty solid commitment.
my room mate got caught in an ied explosion in iraq a couple of years ago (TA) and we have had some RAuxAF casualties too. PTSD and mental health within the reserve community is being given the necessary overhaul - whilst the regulars are surrounded by a peer group who have shared experiences when they return from ops, the reserve community go back to their civilian jobs - whatever they are, and the readjustment can be difficult.
being a reservist offers up a fantastic range of opportunities, but it does require a serious commitment these days...
ruby, we always make sure that spouses are fully aware of the commitment their other halves are making (lots of women with kids join the reserves too) but it is a big decision.