We're already part of the unorganized militia. This is how we can be drafted, because we're already affiliated with the military by default...the state can just 'call us up'. They're not enslaving a free man, they're activating a militiaman. The very purpose of the Selective Service is to record exactly who is in the unorganized militia should they need to be activated.USC › Title 10 › Subtitle A › Part I › Chapter 13 › § 311
(a) The militia of the United States consists of all able-bodied males at least 17 years of age and, except as provided in section 313 of title 32, under 45 years of age who are, or who have made a declaration of intention to become, citizens of the United States and of female citizens of the United States who are members of the National Guard.
(b) The classes of the militia are—
(1) the organized militia, which consists of the National Guard and the Naval Militia; and
(2) the unorganized militia, which consists of the members of the militia who are not members of the National Guard or the Naval Militia.
I've long been of the opinion that a 2-year term or service should be mandatory for everyone upon turning 18, because when you turn 18 you become part of the militia whether you like it or not. This is forced on you like taxes, so IMO just roll with it, use it to your advantage. Even if you choose not to continue to serve in the military, you are still in the militia and so you should have some base-level training to accompany it. You could be summarily deputized during a natural disaster before relief comes. You could be part of a neighborhood watch, etc. These civil duties would be greatly served by basic military training.