5th Chief of Staff of the United States Army
Leonard Wood (October 9, 1860 – August 7, 1927) was a United States Army major general, physician, and public official. He served as the Chief of Staff of the United States Army, Military Governor of Cuba, and Governor-General of the Philippines. He began his military career as an army doctor on the frontier, where he received the Medal of Honor. During the Spanish–American War, he commanded the Rough Riders, with Theodore Roosevelt as his second-in-command. Wood was bypassed for a major command in World War I, but then became a prominent Republican Party leader and a leading candidate for the 1920 presidential nomination.
Born in Winchester, New Hampshire, Wood became an army surgeon after earning a Doctor of Medicine degree from Harvard Medical School. He received the Medal of Honor for his role in the Apache Wars and became the personal physician to the President of the United States. At the outbreak of the Spanish–American War, Wood and Roosevelt organized the Rough Riders, a volunteer cavalry regiment. Wood was promoted to the rank of brigadier general during the war and fought in the Battle of San Juan Hill and other engagements. After the war, Wood served as the Military Governor of Cuba, where he instituted improvements to medical and sanitary conditions. President William Howard Taft made Wood the Army Chief of Staff in 1910, and Wood held that position until 1914. Several Republican leaders supported Wood for the role of commander of the American Expeditionary Forces in World War I, but the Woodrow Wilson administration selected John J. Pershing.
After Roosevelt's death in 1919, many of Roosevelt's former supporters backed Wood for the presidential nomination at the 1920 Republican National Convention. Wood received the most votes on the first four ballots of the convention, but the Republicans nominated Warren G. Harding. Wood retired from the army in 1921 and was appointed Governor-General of the Philippines later that year. He held that position until his death in 1927.
Biographer Jack Lane sums up his importance:
 ;templatestyles src="Template:Blockquote/styles.css" / ;Wood played a significant role in shaping many of the United States's major developments in the early twentieth century: progressivism, expansionism and colonialism, military reform, preparedness and American intervention in World War I, and the election of 1920. He was particularly representative of an era that valued moral and physical strength. Although admired by his generation for his honesty, forthrightness, and his intense and vigorous approach to life, he fell short of greatness.
Early life and education.
Wood was born in Winchester, New Hampshire, on October 9, 1860, one of three children born to Dr. Charles Jewett Wood (1829–1880) and Caroline Elizabeth (Hagar) Wood (1836–1910). His family was of English descent, and Wood was descended from Mayflower passengers William White, Francis Cooke, Stephen Hopkins and Richard Warren. He served as Governor General of the Mayflower Society from 1915 to 1921. Wood was also a member of the General Society of Colonial Wars and the Sons of the Revolution. He was president of the Sons of the Revolution from 1910 to 1911.
Wood was raised in Pocasset, Massachusetts, and educated by a private tutor, then attended Pierce Academy in Middleborough, Massachusetts. Wood tried unsuccessfully for an appointment to the United States Naval Academy and considered going to sea on an Arctic expedition or as a commercial fisherman. In 1880, his sister Barbara died, followed soon after by the death of his father. Wood's mother was able to support herself and Wood's brother Jacob by taking in boarders, while Wood moved away to further his education and obtain a profession. With the assistance of a relative, Wood was introduced to wealthy businessman H. H. Hunnewell, a philanthropist who had provided college tuition for other promising young men. Hunnewell agreed to fund Wood's education at Harvard Medical School, and Wood began attending courses in October 1880. According to Hunnewell, who considered his financial support to young men attending college loans and not grants, but did not attempt to obtain repayment, Wood was the only beneficiary who ever paid him back. Wood worked diligently and consistently improved his class standing to the point where he earned a scholarship that provided additional financial support for his studies.
In 1884, Wood received his MD degree. He interned at Boston City Hospital, but was fired near the end of the year for exceeding his authority by conducting surgical procedures without supervision. He then took over the struggling Boston office of a classmate who had been hired by the Southern Pacific Railway. Wood practiced medicine in late 1884 and into the following year, but business was not steady and he did not have a reliable income. In 1885, he completed the examinations for a commission in the Army Medical Corps, attracted to the military by the possibilities for immediate employment and a regular salary. He finished second of 59 applicants, but there was only one vacancy, so Wood was not immediately offered a commission.
Early military career.
In June 1885, Wood was contracted by the U.S. Army to act as an assistant surgeon without rank, and he was posted to the Department of Arizona. In January 1877, Wood was nominated by the president for appointment in the U.S. Army as assistant surgeon with the rank of first lieutenant. His appointment was among several the United States Senate delayed confirming until July 27, 1886. Until that time, he continued as a contract surgeon and was stationed with the 4th Cavalry at Fort Huachuca, Arizona. Wood participated in the last campaign against Geronimo in the summer of 1886.
Medal of Honor action.
In 1898, Wood received the Medal of Honor for his actions during the 1886 Geronimo campaign, including carrying dispatches 100 miles through hostile territory, and commanding a detachment of the 8th Infantry Regiment whose officers had been killed in hand-to-hand combat against the Apaches. Nelson A. Miles, the overall commander of the expedition, and Henry Ware Lawton, Wood's commander in the field, recommended Wood for a brevet promotion or a Medal of Honor, and lobbied persistently for 12 years until the medal was approved.
Citation for Medal of Honor
The President of the United States of America, in the name of Congress, takes pleasure in presenting the Medal of Honor to Assistant Surgeon Leonard Wood, United States Army, for extraordinary heroism in the Summer of 1886, in action in the Apache Campaigns in Arizona Territory. Assistant Surgeon Wood voluntarily carried dispatches through a region infested with hostile Indians, making a journey of 70 miles in one night and walking 30 miles the next day. Also for several weeks, while in close pursuit of Geronimo's band and constantly expecting an encounter, commanded a detachment of Infantry, which was then without an officer, and to the command of which he was assigned upon his own request.
Awarded for Actions During: Indian Campaigns Service: Army Unit: 4th U.S. Cavalry Date of Issue: April 8, 1898
In late July 1886, Wood's appointment was confirmed and he received his commission as a first lieutenant. In February 1887, he was appointed acting captain and temporary medical director of the Department of Arizona during the illness of his superior. At the end of 1887, Wood's medical duties took him to Fort Lowell, Arizona Territory, followed by duty at Fort Selden, Fort Stanton, and Fort Wingate, New Mexico. In 1888, Wood was assigned to surgeon's duties at Fort McDowell, Arizona. In 1889, Wood was reassigned to the Presidio of San Francisco.
Wood was promoted to captain in 1891. In 1892, he was part of a contingent of Presidio soldiers that traveled to Benicia Barracks to assist units of the California National Guard during the conduct of their annual training encampment. 
Georgia Tech football.
While stationed at Fort McPherson in Atlanta, Wood enrolled in graduate school at Georgia Tech in order to be eligible for the school's football team. He organized the school's 1893 team, served as coach, and played left guard. Wood led Georgia Tech to a 2–1–1 record, including a 28–6 victory over the University of Georgia.
Spanish–American War.
Wood was personal physician to Presidents Grover Cleveland and William McKinley through 1898. During his White House service, Wood developed a friendship with Theodore Roosevelt, then Assistant Secretary of the Navy. At the outbreak of the Spanish–American War, Wood and Roosevelt organized the 1st Volunteer Cavalry Regiment, popularly known as the Rough Riders. Wood successfully commanded the regiment during the June 24, 1898 Battle of Las Guasimas. When the brigade commander, Samuel B. M. Young, became ill, Wood received a field promotion to brigadier general of volunteers. He assumed command of 2nd Brigade, Cavalry Division, Fifth Army Corps (which included the Rough Riders) and led the brigade to a famous July 1, 1898, victory in the combined assaults on Kettle Hill and San Juan Hill that came to be known as the Battle of San Juan Heights.
After San Juan Heights, Wood led the 2nd Cavalry Brigade for the rest of the war. He stayed in Cuba afterward and was appointed military governor of Santiago later in 1898, then served as governor of Cuba from 1899 to 1902. In that capacity, he relied on his medical experience to institute improvements to medical and sanitary conditions. He also introduced numerous reforms similar to those of the Progressive Movement in the U.S., including improvements to the educational and court systems. Though he did institute these improvements, Wood's motivations as military governor remain unclear. In a report to Washington in 1900, he outlined that Cuban stability would be reached when "money can be borrowed at a reasonable rate of interest and when capital is willing to invest in the island." He was promoted to brigadier general in the regular army shortly before moving to his next assignment. On May 15, 1902, prior to leaving office as military governor, Wood issued an order excluding Chinese immigrants.
Philippine–American War.
Wood visited several European countries in 1902. His tour included reviewing German troops during Kaiser Wilhelm II's annual parade in August, which he attended with Samuel B. M. Young and Henry C. Corbin, and a tour of the United Kingdom's Military College at Sandhurst in November. In 1903, Wood proceeded to the Philippines during the Philippine–American War, where he served as governor of Moro Province until 1906, then commanded the Philippine Division from 1906 to 1908. He was promoted to major general in 1903 despite significant opposition from members of the United States Senate who believed he had not served long enough in the lower grades and had been promoted because of political influence, not merit. 
Wood received criticism for his command of U.S. Marines during the First Battle of Bud Dajo in March 1906, during which hundreds of women and children were killed. Though Wood did not directly command the assault, he took full responsibility for the resulting massacre, claiming that the high civilian casualties were the result of Moro men using women and children as human shields, as well as some Moro women dressing as men to join the fight. At Wood's instigation, Governor-General Henry Clay Ide reported that the women and children killed were the result of collateral damage from artillery fire, but that there had been no massacre. Some of Wood's critics accused him of being a "glory hound" for ordering Marines to storm the dormant volcano crater where the battle took place instead of besieging the Moro encampment. 
Due to the backlash over Bud Dajo, Wood resigned as governor of Moro Province in April 1906 and was succeeded by brigadier general Tasker H. Bliss. He returned to the United States in 1908 and was assigned to command the Department of the East, with headquarters in New York City. He remained in this post until 1910, when he was appointed Army Chief of Staff.
Army Chief of Staff.
Wood was named Army Chief of Staff in 1910 by President William Howard Taft, whom he had met while both were in the Philippines; he is the only medical officer to have held the position. As Chief of Staff, Wood implemented several programs, among which were the forerunner of the Reserve Officers' Training Corps (ROTC) program, and the Preparedness Movement, a campaign for universal military training and wartime conscription. The Preparedness Movement led to implementation of the Selective Service System shortly before World War I. As chief of staff, Wood reorganized the general staff into three divisions