A skillful diplomat—an early writer called him "
Talleyrand of the Creeks"—he was an inept military strategist and rarely participated in battle. In 1783, McGillivray became the principal chief of the Upper Creek towns, or as Saunt puts it, "established himself as spokesman for a Creek nation that seemed far more unified on paper than it was in reality". His predecessor, Chief Emistigo, died while leading a war party to relieve the British garrison at
Savannah, which was besieged by the
Continental Army under General
"Mad" Anthony Wayne. At one time, McGillivray claimed that he had 5,000 to 10,000 warriors, to arrive at which figure he included the
Cherokee,
Seminoles, and
Chickamauga he came in contact with (but did not rule). However, he did not live a Creek lifestyle, as he built a plantation on the
Little River and a second one on the
Coosa River, just above modern
Montgomery, Alabama. He built a log house with
dormer windows and a stone chimney, both all but unknown in the Creek nation. He was not only literate, he was by far the wealthiest Creek of his time. McGillivray opposed the 1783
Treaty of Augusta, under which two Lower Creek chiefs had ceded Muscogee lands from the
Ogeechee to the
Oconee rivers to
Georgia. In June 1784 he negotiated the Treaty of Pensacola with Spain, which recognized Muscogee sovereignty over three million acres (12,000 km2) of land claimed by Georgia, guaranteed access to the British fur-trading company
Panton, Leslie & Company, and made McGillivray an official representative of Spain, with a $50 (~$ in ) monthly salary. McGillivray became a partner in Panton, Leslie & Co., and used his control over the deerskin trade to expand his power. McGillivray sought Creek independence after the
Treaty of Paris (1783). He sought to create mechanisms of centralized political authority (in himself), to end the traditional village autonomy by which individual chiefs had signed treaties and ceded land. Armed by British traders operating out of Spanish
West Florida, the Muscogee raided back-country European-American settlers to protect their hunting grounds. From 1785 to 1787, Upper Creek war parties fought alongside the Cherokee in the
Cherokee–American wars in present-day
Tennessee. In 1786 a council of the Upper and Lower Creek in
Tuckabatchee declared war against Georgia; the Spanish officials opposed this, and after they told McGillivray they would reduce aid if he persisted, he entered into peace talks with the U.S. The treaty temporarily pacified the Southern frontier, but the U.S. failed to honor its obligation and did not eject white settlers who were illegally on Creek lands. In addition, he was a "secret partner" of the trading firm Panton, Leslie and Company, one of his principal sources of power, according to
Thomas Jefferson, who met him in 1790. ==Later years, death, and legacy==