[1] Members of the movement traveled to Germany, where they formed the 27th Royal Prussian Jäger Battalion and fought for the Imperial German Army on the Eastern Front of World War I.

[1] During his service in the Imperial German Army, Nordensvan took part in the battles in the areas of Misa, Riga, Schmarden and Aa.

[7] Following his retirement from the army, Nordensvan became a technical advisor and sales manager Hans Koch OY, a Finnish limited liability company until 1926.

According to Kalevi Karusuo, Nordensvan was the first Finnish writer to produce well-informed reports on test drives of cars.

[1] Nordensvan also drove competitively, most notably participating in the 1935 Monte Carlo Rally together with Oscar Hampus and Arvo Wall, driving a Chevrolet car.

[1] Following the end of the war he was promoted to lieutenant colonel in July 1940[9] and awarded the Cross of Liberty 3rd Class in August of the same year.

[10] Nordensvan's home in Siuntio was on land taken over by the Soviet Union during the creation of the Porkkala Naval Base in the aftermath of the Continuation War.