"Every male above 18 is legally US militia" Correct!  But aren't we more considered a member of our respective State Militia?  And we can be called into service by respective state militia at any time.  We, (I may be on the high end of the age group, but I would chap at the opportunity to serve) are considered "Inactive militia members", but none the less, you, me, everyone else is a militia member. Authorized under federal statute Title 32 of the U.S. Code, StateDefenseForces are entirely under state control—unlike the National Guard— both in peace and otherwise.[22] Hence, while the National Guard is a dual-apportioned force that can be called to federal service under Title 10 or remain a state force under Title 32, State Defense Forces serve solely as Title 32 forces. I don't know for sure if ever illegable member is a member of the SDF, if the state has one, or choices to have one though, but somewhere it seems I read that they are.