James Wilkinson was secretly in the pay of this country.
During the Revolutionary War, this country was prevented from taking a British territory through the resistance of George Augustus Eliott's troops. Border disputes with this country led to the formation of the Sabine Free State. James Wilkinson was secretly in the pay of this country. Thomas Pinckney negotiated a treaty with this country that gave the nascent United States free access to the Mississippi River, as well as tax-free deposit rights in the port of New Orleans, which this country held from 1762 to 1802 as part of its control over Louisiana. For 10 points, name this country, which ceded Florida to the United States through the Adams-Onis Treaty.
During the Revolutionary War, this country was prevented from taking a British territory through the resistance of George Augustus Eliott's troops.
Spain [or Espana; or Spanish Empire]