On July 4, 1902, President Theodore Roosevelt issued a proclamation declaring an end to the Philippine Insurrection and a cessation of hostilities in the Philippines "except in the country inhabited by the Moro tribes, to which this proclamation does not apply." Later that month, Davis was promoted and replaced Chaffee as the supreme commander of American forces in the Philippines. Command of the Mindanao-Jolo Department went to Brig. Gen. Samuel S. Sumner. Meanwhile, Pershing settled down to conduct diplomacy with the surrounding Moros, and a July 4th celebration had 700 guests from neighboring rancherias. In September 1902, he led the Masiu Expedition, which resulted in a victory that did much to establish American dominance in the area. On February 10, 1903, Pershing was declared a Datu by the formerly hostile Pandita Sajiduciaman of the Bayan Moros (who had been defeated at the Battle of Pandapatan)—the only American to be so honored. Pershing's career at Camp Vickers culminated in the March Around Lake Lanao during April and May 1903. Dansalan also known as the Marawi Expedition, it included the Battle of Bacolod and First Battle of Taraka but was otherwise peaceful. This expedition quickly became a symbol of American control of the Lake Lanao region and was regarded with dismay by the Moro Maranao inhabitants of that region.