The central government would then require an army to enforce conscription, just as it believed it needed conscription to raise an army. Webster said:
“It will be the solemn duty of the State Governments to protect their own authority over their own Militia, and to interpose between their citizens and arbitrary power. These are among the objects for which the State Governments exist, and their highest obligations bind them to the preservation of their own rights and the liberties of their people. [Emphasis added.]“
How is that not nullification?
https://libertarianinstitute.org/articles/tgif-scourge-conscription/

By now Randolph Bourne’s observation that “war is the health of the state” ought to be such a cliche that it would hardly need to be said. And yet, it must be said — often — because many still haven’t gotten the word.
If the state is the adversary of liberty, as it nearly always has been, then it follows that war is also the ill health of liberty. And when one thinks of war, one ought also to think of conscription because it’s often somewhere close by. In a perverse way, Americans have been lucky. The divisive decade-long Vietnam war and access to the latest war-making technology have made the draft just a bad memory for Americans since 1973 and politically toxic. Repeated attempts to bring it back, even with “national service” packaging fortunately have failed.
Outrageously, however, American men 18-25 must register with the euphemistically named Selective Service System, as they’ve been required to do since 1979 when the Soviet Union invaded Afghanistan. Make no mistake about it. This is not a registration for a benign contest. As the Selective Service website states:
While there is currently no draft, registration with the Selective Service System is the most publicly visible program during peacetime that ensures operational readiness in a fair and equitable manner. If authorized by the President and Congress, our Agency would rapidly provide personnel to the Department of Defense while at the same time providing an Alternative Service Program for conscientious objectors.
How reassuring. The draft is always in the wings. And the penalty for the felony of not registering is a $250,000 fine and/or a five-years prison term.
The evil of slavery is almost universally appreciated, so why is the draft, which is slavery with an expiration date and high risk of death and injury, not universally condemned? Is it because in many places people believe that governments ultimately own their subjects and may dispose of them as they see fit?
The draft has been in the news lately because Russia, the invader, and Ukraine, the invaded, compel men into combat and other military “service.” It is encouraging that neither Russians nor Ukrainians are fans of that policy. Russian men are protesting and some are getting out of the country. Ukraine has had to forbid men from leaving. Many people just don’t relish war.
It should go without saying that if individuals have the right to life, liberty, and the pursuit of happiness, then individuals have the right to decide when they will take up arms, free of a despotic elite or majority. We may not always like the consequences of freedom, but that’s how it is.
Be seeing you