Historically the first conscription in modern times was done by the French:
“Conscription in its modern form arose in revolutionary France, where universal military service was regarded both as a Republican duty, based on the principles of equality and fraternity, and as a necessity for national survival. In August 1793, a law limited liability for service to men between the ages of 18 and 25” (source)
In those times most people did not go to high school or the local equivalents.
Historically the first conscription in modern times was done by the French:
“Conscription in its modern form arose in revolutionary France, where universal military service was regarded both as a Republican duty, based on the principles of equality and fraternity, and as a necessity for national survival. In August 1793, a law limited liability for service to men between the ages of 18 and 25” (source)
In those times most people did not go to high school or the local equivalents.