Why did the pilgrims need to sign a peace treaty with the wampanoag tribe?

The Pilgrims signed a peace treaty with the Wampanoag tribe primarily to establish a cooperative relationship and ensure mutual protection against common threats, particularly from rival tribes. This treaty, signed in 1621, was essential for the survival of the Pilgrims in their new environment, as they relied on the Wampanoag for assistance in farming techniques and local resources. The agreement facilitated trade and communication, fostering a sense of stability in the early years of the Plymouth Colony.