Poor, but the idea of compulsory national service can have some merit as it can be a means to churn together the social classes and avoid them stratifying.
Many implementations of compulsory service (although certainly not all of them), are classist in nature, the draft during the Vietnam War being the greatest example of this.
Yeah, the US draft during the Vietnam Era is not a good example of what I would want. The college exemption in particular was wrong and likely contributed to the campus troubles of that era.