Complex sentence: In 1904, the Roosevelt Corollary was issued by the United States in response to the Drago Doctrine and asserted the right of the United States to intervene Latin America in the interests of American business and Latin American independence from European powers.
Split into simpler sentences: In 1904, the Roosevelt Corollary was issued by the United States in response to the Drago Doctrine. The Roosevelt Corollary asserted the right of the United States to intervene Latin America in the interests of American business and Latin American independence from European powers.