Haiti's relations with outside powers were often strained. In 1889 the United States attempted to force Haiti to permit the building of a naval base at Môle Saint-Nicolas, which was firmly resisted by President Hyppolite. In 1892 the German government supported suppression of the reform movement of Anténor Firmin, and in 1897, the Germans used gunboat diplomacy to intimidate and then humiliate the Haitian government of President Tirésias Simon Sam (1896–1902) during the Lüders Affair.