Previous to the Revolution, and ever since the peace, there has been a constant necessity for keeping small garrisons on our Western frontier. No person can doubt that these will continue to be indispensable, if it should only be against the ravages and depredations of the Indians. These garrisons must either be furnished by occasional detachments from the militia, or by permanent corps in the pay of the government. The first is impracticable; and if practicable, would be pernicious. The militia would not long, if at all, submit to be dragged from their occupations and families to perform that most disagreeable duty in times of profound peace. And if they could be prevailed upon or compelled to do it, the increased expense of a frequent rotation of service, and the loss of labor and disconcertion of the industrious pursuits of individuals, would form conclusive objections to the scheme. It would be as burdensome and injurious to the public as ruinous to private citizens. The latter resource of permanent corps in the pay of the government amounts to a standing army in time of peace; a small one, indeed, but not the less real for being small. Here is a simple view of the subject, that shows us at once the impropriety of a constitutional interdiction of such establishments, and the necessity of leaving the matter to the discretion and prudence of the legislature. In proportion to our increase in strength, it is probable, nay, it may be said certain, that Britain and Spain would augment their military establishments in our neighborhood. If we should not be willing to be exposed, in a naked and defenseless condition, to their insults and encroachments, we should find it expedient to increase our frontier garrisons in some ratio to the force by which our Western settlements might be annoyed. There are, and will be, particular posts, the possession of which will include the command of large districts of territory, and facilitate future invasions of the remainder. It may be added that some of those posts will be keys to the trade with the Indian nations. Can any man think it would be wise to leave such posts in a situation to be at any instant seized by one or the other of two neighboring and formidable powers? To act this part would be to desert all the usual maxims of prudence and policy. If we mean to be a commercial people, or even to be secure on our Atlantic side, we must endeavor, as soon as possible, to have a navy. To this purpose there must be dock-yards and arsenals; and for the defense of these, fortifications, and probably garrisons. When a nation has become so powerful by sea that it can protect its dock-yards by its fleets, this supersedes the necessity of garrisons for that purpose; but where naval establishments are in their infancy, moderate garrisons will, in all likelihood, be found an indispensable security against descents for the destruction of the arsenals and dock-yards, and sometimes of the fleet itself. PUBLIUS.