The garrisons of Detroit and Michilimakinack do not, I believe, exceed seventy rank and file each; but the former can be easily reinforced by the militia in the neighbourhood, which, though not numerous, would be ample for its defence, unless assailed by a force much superior to any we can now command.  The Americans will probably draw their principal force, either for offence or defence, from the Ohio, an enterprising, hardy race, and uncommonly expert on horseback with the rifle.  This species of force is formidable to the Indians, although, according to reports which have reached me by different channels, but not official, they lately repelled an attack of some magnitude.  Unless a diversion, such as I have suggested, be made, an overwhelming force will probably be directed against this part of the province.  The measure will, however, be attended with a heavy expense, especially in the article of provision, for, not only the Indians who take the field, but their families, must be maintained.

The numeral force of the militia in the vicinity of Amherstburg exceeds by a trifle seven hundred rank and file; consequently, very little assistance can be derived from that source in any offensive operation.  Should, therefore, the aspect of affairs hereafter give stronger indications of a rupture, I propose augmenting the garrison of Amherstburg with two hundred rank and file from Fort George and York.  Such a measure I consider essentially necessary, were it only calculated to rouse the energy of the militia and Indians, who are now impressed with a firm belief, that in the event of war they are to be left to their fate.  Great pains have been taken to instil this idea into their minds, and no stronger argument could be employed than the weak state of that garrison.

The army now assembled upon the Wabash, with the ostensible view of opposing the Shawnese, is a strong additional motive in my mind in support of this measure; for I have no doubt that, the instant their service in the field terminates, a large portion of the regulars will be detached to strengthen the garrison of Detroit.  I have prepared Colonel Proctor for such an event, and after weighing the inconvenience to which the service would be exposed if the district were placed under a militia colonel, (an event obvious, unless superseded by a regular officer of equal rank) I have directed Lieut.-Colonel St. George to be in readiness to repair to Amherstburg and assume the command; and I hope his situation of inspector of militia will not be considered a bar to the arrangement.  The state of the roads will probably stop this projected movement until the end of this month or beginning of the next; nor do I intend that the troops should leave their present quarters, unless urged by some fresh circumstances.  I therefore look to receive your excellency’s commands previous to their departure.