Evidence was not wanting that Great Britain courted war.[311] She had been cold and unresponsive to every approach for a better understanding with us. She had not even sent a Minister to our Government until eight years after the Treaty of Peace had been signed.[312] She not only held our posts, but established a new one fifty miles south of Detroit; and her entire conduct indicated, and Washington believed, that she meant to draw a new boundary line which would give her exclusive possession of the Great Lakes.[313] She had the monopoly of the fur trade[314] and plainly meant to keep it.
Lord Dorchester, supreme representative of the British Crown in Canada, had made an ominous speech to the Indians predicting hostilities against the United States within a year and declaring that a new boundary line would then be drawn "by the warriors."[315] Rumors flew and gained volume and color in their flight. Even the poised and steady Marshall was disturbed.
"We have some letters from Philadelphia that wear a very ugly aspect," he writes Archibald Stuart. "It is said that Simcoe, the Governor of Upper Canada, has entered the territory of the United States at the head of about 500 men and has possessed himself of Presque Isle." But Marshall cannot restrain his humor, notwithstanding the gravity of the report: "As this is in Pennsylvania," he observes, "I hope the democratic society of Philadelphia will at once demolish him and if they should fail I still trust that some of our upper brothers [Virginia Republicans] will at one stride place themselves by him and prostrate his post. But seriously," continues Marshall, "if this be true we must bid adieu to all hope of peace and prepare for serious war. My only hope is that it is a mere speculating story."[316]
Powerless to obtain our rights by force or to prevent their violation by being prepared to assert them with arms, Washington had no recourse but to diplomacy. At all hazards and at any cost, war must be avoided for the time being. It was one of Great Britain's critical mistakes that she consented to treat instead of forcing a conflict with us; for had she taken the latter course it is not improbable that, at the end of the war, the southern boundary of British dominion in America would have been the Ohio River, and it is not impossible that New York and New England would have fallen into her hands. At the very least, there can be little doubt that the Great Lakes and the St. Lawrence would have become exclusively British waters.[317]