[2] Holm was commissioned as an officer in the Swedish Army Service Troops in 1941 with the rank of fänrik[1] in the Norrland Logistic Corps (T 3) in Sollefteå.

[2] He was appointed captain in the General Staff Corps in 1955 and he served in the expert investigation regarding compulsory military service from 1956 to 1958.

Holm was a member of the 1960 Social Emergency Committee (Socialberedskapskommittéen) and he served as head of department in the Defence Staff from 1960.

[2] In August 1971, Holm inspected the Swedish Contingent serving with the United Nations Peacekeeping Force in Cyprus (UNFICYP).

In 1982 discussions with the Swedish Navy were also initiated and the issue of setting up a Home Guard with naval tasks was raised.