The Peasants<span>' </span>Revolt<span>, also called Wat Tyler's Rebellion or the </span>Great<span> Rising, was a major uprising across large parts of England in 1381. ... Inspired by the sermons of the radical cleric John Ball, and led by Wat Tyler, a contingent of Kentish rebels advanced on London.</span>
I think the French allied with a local tribe, and helping the tribe fight the Iroquois was part of the deal. This persuaded the Iroquois to ally with the British.