Task: Question Generation
Input (English): Passage: For the Fox, the origins, and the potential solution, to resolve their conflict lay in the slave trade. The Foxes were still willing to return to the French alliance if they could secure the return of their captives.:215 In fact, all they wanted was to be considered as allies and kin, not enemies. However, the French officials supported that the Illinois, Ottawas, Ojibwas, and Huron were against the Foxes. As a result, the peace treaty from 1726 was annulled in the summer of 1727.:215 With this peace treaty being annulled, the Fox declared war to the French and all their Indian allies. For the next four years, the French invested a lot of money and descended, with their allies, on Fox villages with an extreme advantage.:216 The French pursued destruction of the Fox to such an extent as to damage their relations with other tribes. The Sioux and the Iowas refused the Fox sanctuary.:218 By the summer of 1730, the Fox population was weakening and continued to be attacked until the Sauk finally granted them sanctuary. The Sauk and Fox fought off the French with the help of western Indians, who were aware of Beauharnois plan for decimation.:219 This final push would cause Beauharnois to grant a "General Pardon" in 1738 and peace to be restored.:219 Their historical feuds with New France encouraged many Sauk and Fox warriors to develop kinship ties with France's rivals, the British. These ties continued to be significant as late as the War of 1812, when many Sauk and Fox fought on the side of British North America.
Output (English): how many year did the peace treaty last between fox and french ?