After receiving his commission, Wood was assigned to the
18th Infantry Regiment at
Fort McPherson, Georgia, where he remained until April 12, 1879. From April 1879 to March 1880 he was posted to
Fort Assinniboine, Montana. Wood was then assigned as professor of military science and tactics at
Illinois Industrial University, where he remained until July 1883. He then returned to frontier duty at Fort Assinniboine, where he served until May 1885. Wood served at
Fort Leavenworth, Kansas from May 1885 to November 1886, and he was promoted to
first lieutenant in October 1886. From November 1886 to July 1887, Wood served at
Fort Riley, Kansas. In June 1887 he was assigned as the regimental quartermaster, and he performed this duty until December 1888. Wood was posted to
Fort Hays, Kansas until January 1889,
Fort Gibson, Oklahoma until October 1889, and
Fort Clark, Texas until October 1893. From June 1890 to December 1892, Wood served again as the 18th Infantry's quartermaster officer. He was posted to
Fort Bliss, Texas from October 1893 to September 1895, and he was promoted to
captain in June 1894. Wood performed recruiting duty in
Pittsburgh, Pennsylvania from October to November 1895, and in
Louisville, Kentucky from November 1895 to October 1897. He served on garrison duty at
Fort Sam Houston, Texas from October 1897 to April 1898, and in
Mobile, Alabama until May 1898. ==Continued career==