What plan for the regulation of the militia may be pursued by the national government is impossible to be foreseen…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… Little more can reasonably be aimed at with the 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.