America still has a draft system ? I thought they learnt their lesson after Vietnam that drafting doesn't work.
The UK use a Territorial Army system which people are trained in military services and only do 30-60 days service (kinda like army reserves) and go on with their regular day to day living. So most of them have a career or a job, then take 2 months out when called to help with British service.
People can chose careers in the British army from medics,drivers,logistics,computers/recon,pilots,army police, front-line trooper etc. You're not just told "oh hey be a meat-shield" unless you signed up for it.
There is no draft system in the UK and I think it would be stupid to have a draft unless World war 3 happened and most of the military had already been annihilated.