Filipino nationalists fought against a change in colonial masters following the Spanish-American war. Led by Emilio Aguinaldo, they sought independence from any colonial masters. The Philippines was given full independence from the United States following the signing of the Treaty of Manilla.
The Louisiana Purchase helped to double the size of the country and provided control of the Mississippi River. The Louisiana Purchase was a massive land purchase by the U.S. from France under President Thomas Jefferson's administration.