Answer:
On March 22, 1621, Massasoit and William Bradford, representatives of the Wampanoag and the Plymouth settlers respectively, signed a peace treaty that ended the previous tensions between the two groups, while creating a commercial alliance between them.
In this way, the Plymouth settlers prevented the Wampanoag from cooperating with the Pequot, who were at war with the English. If this had happened, the Plymouth colony, outnumbered and without resources, would have been defeated.
In turn, for the Wampanoag the treaty represented the beginning of a period of peace and growth for its people, which was interrupted after Massasoit's death, with the arrival of Metacomet and King Philip's War.