United States Militia
[...] there is no constitutional obligation upon government to protect every person from force or violence (and also no obligation or liability for failing to come to any person so threatened.) [...] The very notion that government, having backed away from an obligation to defend its citizens, can then impose fines and even imprison the same citizens who by the use of arms, ward off attackers, is preposterous.
I ask you, sir, what is the militia? It is the whole people except for a few public officials. To disarm the people, that is the best and most effective way to enslave them.
The only time in our history that Congress has authorized the President to draft citizens into the military service prior to the present emergency (WWI) was during the Civil War and that draft act specifically recited in its title that it was resorted to for the purpose of 'suppressing insurrection and rebellion' which is one of the express purposes for which the Federal Government is authorized to use the militia.
[...] the power given to Congress with respect to the militia was manifestly to make a large standing army unnecessary.
But as the service of the militia can only be required by the National Government for the limited purposes specified in the Constitution (to uphold the laws of the Union; to suppress insurrection and repel invasion) [...] 'the Organized Militia' (the National Guard) can not be employed for offensive warfare outside the limits of the United States.