I did my service right around the time GWOT started, and it was around this time that our military started to focus more on transitioning to a professional (we do have professional units) military aimed at fighting terrorism in the middle east(Afghanistan/ISAF) as part of our NATO duties.

By the time you were finishing up your service (6-12 months depending on where you were stationed), you'd get a presentation on "the road ahead" if you wanted to continue military life: military school/college, become a professional soldier, etc.

With that said, I think maybe 10%-15% of the guys in our platoon decided to go with the Afghanistan route. IIRC that meant transferring / trying out for the professional battalion (TMBN), training for some time, and then deployed.

I don't think sending all conscripted soldiers to some foreign war will yield good results. But I do think that by the end of their service, some will be hyped up and "thirsty" enough to just go for it.