European monarchies form the Quadruple Alliance to suppress democratic revolutions Newly independent nations of Latin America gain the sympathy of the American people Britain and U.S. are alarmed at Russian expansionist aims Britain proposes to issue a joint statement with the U.S. against intervention in Latin America U.S. issues the Monroe Doctrine European monarchies defeat Napoleon in 1815 Simon Bolivar and Jose San Martin lead the independence movement in the Latin American colonies and overthrow Spain Russian tsar announces in 1821 that his empire extends south into Oregon British fear that the Quadruple Alliance may try to suppress Latin American democracies