to war, League of Nations President Briand offered his personal good offices, but he refused to assert League authority for fear of irritating the United States. In the end, the Pan-American Commission of Inquiry assumed jurisdiction.Latin-American protests grew in volume, especially in 1926, when a Mexican-supported leftist rebellion in Nicaragua prompted U.S. Secretary of State Frank B. Kellogg to report to the Senate Foreign Relations Committee on "Bolshevist Aims and Policies in Mexico and Latin America." But intervention by United States marines in Nicaragua only paved the way for the dictatorial regime of the Somozas. At the Pan-American Conference of 1928, rivalry between Argentina and Brazil and the Chaco contestants, and the caution of other states, precluded their presenting a united Latin-American front. But the U.S. administrations of the decade did labor to improve the Moen 6American image. The Clark Amendment of 1928 repudiated the Roosevelt Corollary, while Hoover toured 10 Latin-American nations after his election as president and repudiated the "big brother" role. In the 1920s, therefore, the United States continued to squeeze out European influence in Latin America but was itself moving slowly toward the "Good Neighbor" policy of the 1930s.The efforts made by the administration of U.S. president Franklin D. Roosevelt to improve relations with Latin America were known as the Good Neighbor Policy. Roosevelt pledged to be a "good neighbor" in his inaugural address in 1933, and the phrase was soon linked to American policy in the Western Hemisphere. At the Pan American Conference in Montevideo, Uruguay, in December 1933, the United States signed a convention forbidding intervention by one state in another's affairs. The following year Roosevelt ended the 19-year occupation of Haiti by U.S. Marines and abrogated the Platt Amendment, which had made Cuba a virtual U.S. dependent. The United States continued to adhere to the p...