He was made a lieutenant in the infantry from 1932, and served as a trainee with the General Staff from 1935 to 1938.
[4] Frisvold was among the group of central persons who developed military resistance in Norway in 1940 and 1941, eventually leading to the formation of Milorg.
[4] From 1961 to 1966 he was assigned chief of the Norwegian Army, with the rank of lieutenant general.
[1] Frisvold was awarded the Haakon VII 70th Anniversary Medal, the Defence Medal 1940–1945, and the Grand Cross of the American Legion of Merit.
He received the Grand Cross of the Belgian Order of the Crown and the Grand Cross of the Swedish Order of the Sword.