He became major 1st class (binbashi)[5] in the Ottoman Army in 1903 and was employed in the staff of Hüseyin Hilmi Pasha, the Inspectorate-General of Macedonia the same year.

[5] Unander served as a special attaché in London from 1917 to 1918 and he was promoted to major in Norrbotten Regiment the same year.

He was acting diplomatic agent and consul general in Egypt from 1919 to 1922 and served in the South Scanian Infantry Regiment (I 7) in 1922.

[4] On 21 March 1936, in his home at Drottninggatan 36 in Malmö and surrounded by like-minded people, Unander founded Travellers Club in Malmö, a gentlemen's club which consists of men who have gained experience and knowledge of foreign countries and cultures and who wish to exchange thoughts and experiences.

[2] Unander died on 20 September 1967 in Bern, Switzerland[6] and was buried on 22 December 1967 in Norra begravningsplatsen in Stockholm.