In form the compromises were a settlement of difficulties between the two Houses; in fact they were an agreement between the two sections, by which the future of slavery in every part of the Louisiana purchase was to be settled once for all. Threats were freely made that if slavery were prohibited in Missouri, the South would withdraw. Calhoun told Adams that if the trouble produced a dissolution of the Union, "the South would be from necessity compelled to form an alliance, offensive and defensive, with Great Britain." Adams retorted by asking whether, in such a case, if "the population of the North should be cut off from its natural outlet upon the ocean, it would fall back upon its rocks bound hand and foot to starve, or whether it would not retain its powers of locomotion to move southward by land?" The compromise was, as Benton says, "conceived and passed as a Southern measure," although Randolph called it a "dirty bargain;" nevertheless, on the final test vote thirty-five Southern members refused to admit the principle that Congress could prohibit slavery in the Territories. The South gained Missouri, and a few years later Arkansas came in as a slave State; but in the long run the advantage was to the North. The South got the small end of the triangle; the North the whole region now occupied by the States of Kansas, Nebraska, Iowa, the Dakotas, and Montana, and parts of Colorado, Wyoming, and Minnesota; and the final struggle over slavery was postponed for thirty years. 128. RELATIONS WITH THE LATIN-AMERICAN STATES (1815-1823). [Sidenote: The Spanish colonies.] [Sidenote: Revolutions.] While the attention of the country was absorbed by the Missouri struggle, a new question of diplomacy had arisen. In 1789 almost every part of the two American continents south of the United States, except Brazil, was subject to Spain. The American Revolution had given a shock to the principle of colonial government by European powers; the Spanish colonies refused to acknowledge the authority of the French usurpers in Spain, and in 1808 a series of revolts occurred. At the restoration of the Spanish Bourbons in 1814, the colonies returned to nominal allegiance. The new king attempted to introduce the old regime: the colonies had too long enjoyed the sweets of direct trade with other countries, and they resented the ungentle attempts to restore them to complete dependence; between 1816 and 1820 the provinces on the Rio de la Plata, Chile, and Venezuela again revolted; and by 1822 there was a revolutionary government in every continental Spanish province, including Mexico. [Sidenote: The Holy Alliance.] [Sidenote: Intervention proposed.]