Colonial history of the United States exchange for control of Havana, Cuba, which had been captured by the British during the Seven Years' War. Florida was home to about 3,000 Spaniards at the time, and nearly all quickly left. Britain occupied Florida but did not send many settlers to the area, and control was restored to Spain in 1783 by the Peace of Paris which ended the American Revolutionary War. Spain sent no more settlers or missionaries to Florida during this second colonial period. The inhabitants of West Florida revolted against the Spanish in 1810 and formed the Republic of West Florida, which was quickly annexed
Mexican–American War could not be released from its obligations. The US was released from all obligations of Article XI five years later by Article II of the Gadsden Purchase of 1853. The 1848 Treaty of Guadalupe Hidalgo ended the war and enforced the Mexican Cession of the northern territories of Alta California and Santa Fe de Nuevo México to the United States. Mexico acknowledged the loss of what became the State of Texas and accepted the Rio Grande as its northern border with the U.S. The losses amounted to one-third of its original territory from its 1821 independence. Before the secession of