Served in a country with conscription. It is deeply unpopular here, at least amongst the men. Only men need serve which holds them back as women start university and their careers two years earlier. The pay sucks, and there are many less well-off men who have to moonlight, at risk of being court-martialled and set to military prison. The commitment doesn't end there: men can and will be called back annually for ten years after leaving full-time conscription for two to three weeks of reservist training, which disrupts their civilian work. There are negligible benefits for reservists, and conscripts don't get the respect that American veterans and servicemen seem to.
Conscript armies work very differently to volunteer armies; you should be wary of what you're asking for.