The English realized that the French needed Native American support to continue the war, therefore they initiated a series of negotiations with Lenape leaders in an attempt to make them withdraw from the fighting. Fearing that the ever-advancing European settlers would permanently take control of their lands, Lenape chiefs hoped to bargain for a binding treaty that would grant them protected space. Pennsylvania Deputy Governor William Denny asked
Christian Frederick Post to act as negotiator at Kuskusky. Post was an experienced frontiersman and had two Lenape wives, spoke the language well, and the Lenape trusted him. He was instructed by Deputy Governor Denny to offer
amnesty to all Lenape who had participated in frontier raids against Pennsylvania if they would now support the British. Pisquetomen accompanied Post and
Keekyuscung to Philadelphia in July, 1758, to meet with
Richard Peters and Deputy Governor Denny. Post then returned with Pisquetomen, and met his brothers
Shingas and Tamaqua at the Kuskuskies on 12 August 1758. Post assured Tamaqua and the other leaders that the English wanted peace. Post continued down the Ohio to address other Lenape and their Shawnee and Mingo allies. Though well received by the Indians, Post had to be protected from the French by Pisquetomen and his warriors. After the French withdrew from Fort Duquesne on 22 November 1758, Pisquetomen told Post that, for a lasting peace, the English "must speedily retire to the other side of the mountains," adding that if they did so, "I will use it for an argument with other nations of Indians." Post made no such promise, however. ==Final years and death==