I’m really unsure of what your goal here is. Conscription is terrible and shouldn’t be needed, we all agree on that. It’s incredibly common at least for defense. I am genuinely curious about how many societies don’t have it in one form or another.

Are you an American male between 18 and 25? If so enjoy your forced military service. Failure to sign up for the selective service is punishible by a $250000 fine or 5 years in prison. It’s also a requirement for student aid or federal employment. Democracies have conscription too

Our would they care about rockets to Mars?

Some of us were born before 1985 and enjoyed this already.