With these blessings are necessarily mingled the pressures and vicissitudes incident to the state of war into which the United States have been forced by the perseverance of a foreign power in its system of injustice and aggression. Previous to its declaration it was deemed proper, as a measure of precaution and forecast, that a considerable force should be placed in the Michigan Territory with a general view to its security, and, in the event of war, to such operations in the uppermost Canada as would intercept the hostile influence of Great Britain over the savages, obtain the command of the lake on which that part of Canada borders, and maintain cooperating relations with such forces as might be most conveniently employed against other parts. Brigadier-General Hull was charged with this provisional service, having under his command a body of troops composed of regulars and of volunteers from the State of Ohio. Having reached his destination after his knowledge of the war, and possessing discretionary authority to act offensively, he passed into the neighboring territory of the enemy with a prospect of easy and victorious progress. The expedition, nevertheless, terminated unfortunately, not only in a retreat to the town and fort of Detroit, but in the surrender of both and of the gallant corps commanded by that officer. The causes of this painful reverse will be investigated by a military tribunal. A distinguishing feature in the operations which preceded and followed this adverse event is the use made by the enemy of the merciless savages under their influence. Whilst the benevolent policy of the United States invariably recommended peace and promoted civilization among that wretched portion of the human race, and was making exertions to dissuade them from taking either side in the war, the enemy has not scrupled to call to his aid their ruthless ferocity, armed with the horrors of those instruments of carnage and torture which are known to spare neither age nor sex. In this outrage against the laws of honorable war and against the feelings sacred to humanity the British commanders can not resort to a plea of retaliation, for it is committed in the face of our example. They can not mitigate it by calling it a self-defense against men in arms, for it embraces the most shocking butcheries of defenseless families. Nor can it be pretended that they are not answerable for the atrocities perpetrated, since the savages are employed with a knowledge, and even with menaces, that their fury could not be controlled. Such is the spectacle which the deputed authorities of a nation boasting its religion and morality have not been restrained from presenting to an enlightened age.