In Pontiac's revolt, native warriors attacked British forts all along the frontier. (As portrayed in Canada: A People's History)

At the biggest, Fort Detroit, Pontiac's warriors arrived in sixty-five canoes, killing the settlers outside its walls and laying siege to the fort itself. Ninety soldiers from the eastern English colonies were sent to Fort Detroit to help but were attacked outside its walls. Several soldiers were killed and forty-six were captured.

Robert Navarre, a notary inside Fort Detroit, observed the gruesome scene. "The savages disembarked their prisoners, one company after another, upon the strand and made them strip naked, and other Indians then discharged their arrows into all parts of their bodies...

	For five weeks, Pontiac's war bands held the interior in terror, killing settlers and taking captives. (As portrayed in Canada: A People's History)

the poor victims had to keep standing till they fell dead in their tracks and then those who had not engaged in the killing fell up on the dead bodies and hacked them to pieces, cooked them, and feasted upon them. Some they treated with different cruelty, slashing them alive with gun-flints, stabbing them with spears, cutting off their hands and feet and letting them bathe in their own blood and die in agony; others were bound to stakes and burned by children in a slow fire."

For five weeks, Pontiac's war bands massacred settlers and held the interior in terror. But Pontiac wasn't able to bring the Canadians to his side in his war with the English.
He occasionally had to plunder their farms for food, which angered them. And there was a problem in uniting the Indian nations too. Some were being appeased by the English. As the siege of Detroit dragged on, members of Pontiac's own band drifted home for the hunting season. The Indian uprising appeared to be waning. And the British had conceived their own brutality.