Boustedt was born on 22 August 1868 in Fuxerna Parish, Älvsborg County, Sweden, to captain Axel Boustedt and his wife Amanda Bergius. Boustedt was commissioned as an officer in Bohuslän Regiment in 1891 with the rank of underlöjtnant. He was then teacher at Billströmska folkhögskolan in Tjörn from 1892 to 1898. He was promoted to lieutenant in 1895 and served as lieutenant of the General Staff in 1903 and as captain there in 1904. Boustedt served as teacher at the Swedish Infantry Gunnery School in 1904, and as teacher at the Royal Swedish Army Staff College from 1904 to 1911. Boustedt served as captain in Älvsborg Regiment in 1910 and was promoted to major and appointed head of the Communications Department of the General Staff in 1912. He was promoted to lieutenant colonel there in 1915 and then served in Västernorrland Regiment in 1916. Boustedt was promoted to colonel in the army in 1917 and was appointed regimental commander of Västernorrland Regiment in 1918. Five years later, Boustedt was appointed regimental commander of Uppland Infantry Regiment. He was at the same time commander of the 9th Infantry Brigade. In 1926, Boustedt was appointed head of the Military Office of the Land Defence two years later, in 1928, he was promoted to major general and appointed brigade commander in the Western Army Division. Boustedt then served as commanding officer of the Eastern Army Division and as Commandant General of Stockholm's Garrison for a year before taking up the position as chief of the General Staff in 1930. Boustedt was a strong supporter of the idea of intimate cooperation between the Nordic countries for joint protection, wanted the commanders to have intimate contact with other professional groups and wished to broaden their understanding of social life in its various forms. He also drafted instructions for field service training. In Sweden during the 1930s, ideas were born about Swedish-Finnish military cooperation for Finland's defense with, among other things, the Swedish field army under a League of Nations flag on the Karelian Isthmus, protect Finland against an expected Soviet attack. A driving force on the Swedish side was chief of the General Staff Boustedt, who led reconnaissance on the isthmus and was one of the forces behind the opposition group Antingen – eller within the Swedish Army. As chief of the General Staff, Boustedt, also disapproved of plans to make propaganda films intended to boost patriotic motivation among the conscripts. In a letter to the Armé- och Marinfilm, written in 1931, Boustedt claimed that due to their individualistic national character, Swedish conscripts were suspicious of any manipulative efforts from the authorities. Only films that had no obvious intention of guiding the viewers’ thinking in a certain direction could have a genuine influence on Swedish audiences, he argued. Boustedt was promoted to lieutenant general in 1933 and retired from the military the same year. After his retirement, he created respect through a series of investigations and extensive attempts to create conditions for the partial modernization of the army, which was decided in 1936. Boustedt was also secretary of the Military Literature Association from 1909 to 1917, member of the Infantry Commission from 1920 to 1921,, military member of the King's Supreme Court from 1930 until 18 May 1934, as well as chairman of the 1933 Flight Commission.
Personal life
In 1917, he married Stina Håkansson, the daughter of captain Axel Håkansson and Emma Tottie. They were parents of Bo Boustedt, an architect. Boustedt died on 24 October 1939 at Röda Korsets sjukhem in Stockholm.
