Worse IMO his ego demanded that the US waste thousands of US lives taking Peleliu and, frankly, the Philippines. Because he said he'd return. Both campaigns contributed very little to ultimately victory in the Pacific.
So how many nations have you defeated?
Below is how The General earned his two Distinguished Service Crosses.
An outstanding student, he held several leadership positions within the Corps of Cadets including First Captain in his final year at the academy. Graduating in 1903, MacArthur ranked first in his 93-man class.
1914 Mexico
Finding that an advance from the city would require the use of a railroad, he set out with a small party to locate locomotives. Finding several in Alvarado, MacArthur and his men were forced to fight their way back to the American lines. Successfully delivering the locomotives, his name was put forward by Chief of Staff Major General Leonard Wood for the Medal of Honor. Though the commander in Veracruz, Brigadier General Frederick Funston, recommended the award, the board tasked with making the determination declined issuing the medal citing that the operation had occurred without the knowledge of the commanding general.
WW1
With the formation of the 42nd Division, MacArthur was promoted to colonel and made its chief of staff. Sailing for France with the division in October 1917, he earned his first Silver Star when he accompanied a French trench raid the following February. On March 9, MacArthur joined a trench raid conducted by the 42nd. Moving forward with the 168th Infantry Regiment, his leadership earned him a Distinguished Service Cross. On June 26, 1918, MacArthur was promoted to brigadier general becoming the youngest general in the American Expeditionary Force. During the Second Battle of the Marne that July and August, he earned three more Silver Stars and was given command of the 84th Infantry Brigade.
Taking part in the Battle of Saint-Mihiel in September, MacArthur was awarded two additional Silver Stars for his leadership during the battle and subsequent operations. Shifted north, the 42nd Division joined the Meuse-Argonne Offensive in mid-October. Attacking near Châtillon, MacArthur was wounded while scouting a gap in the German barbed wire. Though again nominated for the Medal of Honor for his part in the action, he was denied a second time and instead awarded a second Distinguished Service Cross. Quickly recovering, MacArthur led his brigade through the final campaigns of the war. After briefly commanding the 42nd Division, he saw occupation duty in the Rhineland before returning to the United States in April 1919.