Yes, however not quite the same as most other countries/ours in the 50's, something a bit more lenient and flexible.
I'd propose something like 3-6 months (minimum) taken whenever you wanted between the ages of 18-20 (so you could plan round it) perhaps straight after leaving school and before going to uni (if you were going). Once in you'd all do the same 2-3 months to begin with but people would be picked/have a choice to do a variety of skills they enjoyed. You could work on an army officer route, mechanic, engineer, general. After your minimum term you could then choose to defer your time (come back during the next summer for example), carry on and essentialy enlist for a short time (say one to two years) where you could head towards a more military orientation if you wish and even join the proper Army. If however you were a young offender or someone deemed "not fit enough for society" (for example not getting any skills from your initial 3-6 months) then you would be forced to stay longer.
Something like that would aim towards teaching people, instead of just becoming a soldier and learning fighting skills, to become better members of society (by using a militaryesq system) but also to help you on your way into whatever career you think you may want to do. In this way someone wanting to become a mechanic after leaving national service could get the qualification whilst doing their service, someone going to uni to do engineering, a bit of practical engineering (perhaps succonded to the RE for part of their service period) someone wanting to work in an office perhaps a more administrative based period).
This sort of system could amalgumate/work along side things like apprentichip schemes, the ATC and UAS as well as voluntary schemes whilst still being considered national service and making people fit and preferably more polite/"nice" (you would still have the running, pressups, marching and general military things going on.
This would also solve the problem of national service diluting our military as you would not really be in the military, just using old bases and a few instructors. Those that decide they want to join the military could then perhaps miss some of the basic training out when they signed up (having done it in their national service).
It would cost money but it would also put a huge amount back into society and I don't think people would be as annoyed about doing it, especially if they knew that they shoudl be coming out the other side with something useful that THEY chose.
No, but I would like to see opportunities available for those who have difficulty finding work. Not necessarily so they become soldiers as such, but rather, they could be deployed around the country, assisting in projects where needed. Maybe even abroad.
But definitely not forced service.
My suggestion would include ideas like this into the service period, so helping those unemployable to be employable.
So essentialy like a much more vocational version of school with far stricter rules.
(Jees! Rereading that there are quite a few spelling mistakes, I can't be bothered to sort them all out so sorry...

)