Federalist Papers No29
"The project of disciplining all the militia of the United States is as futile as it would be injurious, if it were capable of being carried into execution. A tolerable expertness in military movements is a business that requires time and practice. It is not a day, or even a week, that will suffice for the attainment of it. To oblige the great body of the yeomanry, and of the other classes of the citizens, to be under arms for the purpose of going through military exercises and evolutions, as often as might be necessary to acquire the degree of perfection which would entitle them to the character of a well-regulated militia, would be a real grievance to the people, and a serious public inconvenience and loss. It would form an annual deduction from the productive labor of the country, to an amount which, calculating upon the present numbers of the people, would not fall far short of the whole expense of the civil establishments of all the States. To attempt a thing which would abridge the mass of labor and industry to so considerable an extent, would be unwise: and the experiment, if made, could not succeed, because it would not long be endured. Little more can reasonably be aimed at, with respect to the people at large, than to have them properly armed and equipped; and in order to see that this be not neglected, it will be necessary to assemble them once or twice in the course of a year.
"But though the scheme of disciplining the whole nation must be abandoned as mischievous or impracticable; yet it is a matter of the utmost importance that a well-digested plan should, as soon as possible, be adopted for the proper establishment of the militia. The attention of the government ought particularly to be directed to the formation of a select corps of moderate extent, upon such principles as will really fit them for service in case of need. By thus circumscribing the plan, it will be possible to have an excellent body of well-trained militia, ready to take the field whenever the defense of the State shall require it. This will not only lessen the call for military establishments, but if circumstances should at any time oblige the government to form an army of any magnitude that army can never be formidable to the liberties of the people while there is a large body of citizens, little, if at all, inferior to them in discipline and the use of arms, who stand ready to defend their own rights and those of their fellow-citizens. This appears to me the only substitute that can be devised for a standing army, and the best possible security against it, if it should exist."
There is something so far-fetched and so extravagant in the idea of danger to liberty from the militia, that one is at a loss whether to treat it with gravity or with raillery; whether to consider it as a mere trial of skill, like the paradoxes of rhetoricians; as a disingenuous artifice to instil prejudices at any price; or as the serious offspring of political fanaticism. Where in the name of common-sense, are our fears to end if we may not trust our sons, our brothers, our neighbors, our fellow-citizens? What shadow of danger can there be from men who are daily mingling with the rest of their countrymen and who participate with them in the same feelings, sentiments, habits and interests? What reasonable cause of apprehension can be inferred from a power in the Union to prescribe regulations for the militia, and to command its services when necessary, while the particular States are to have the SOLE AND EXCLUSIVE APPOINTMENT OF THE OFFICERS? If it were possible seriously to indulge a jealousy of the militia upon any conceivable establishment under the federal government, the circumstance of the officers being in the appointment of the States ought at once to extinguish it. There can be no doubt that this circumstance will always secure to them a preponderating influence over the militia.