>Starship troopers differentiated between citizen and civilian. Citz required mil service
It used to be you just had to be a tax payer.
Not Sales or Income Tax…PROPERTY TAX
People were so apathetic a few years ago, I bet you could have passed a "Citizen Right to Vote Act Through Military Service" in 2018 in all 50 States; thereby disenfranchising 98% of the people that would have voted for it…
I don't think you could do that now.