Conversation so far:
Who were the Osceola resisting in the 1830s?
Through the 1820s and the turn of the decade, American settlers continued pressuring the US government to remove the Seminole from Florida.
What did the Treaty of Payne's Landing consist of?
The treaty negotiated at Payne's Landing called for the Seminoles to move west if the land were found to be suitable.
How did Osceola and the other Seminoles respond to the conditions of the Treaty of Payne's Landing?
According to legend, Osceola stabbed the treaty with his knife, although there are no contemporary reports of this.

Question: Who was the other party in the treaty besides the seminoles?
Self-contained rewrite: Who was the other party in the Treaty of Payne's Landing besides the Seminoles?