[1] However, he left the army and worked in different jobs such as deputy chief of police and insurance inspector.

[1] When World War I broke out in 1914 Jalander resumed his military service in Russia where he served as company commander and battalion commander's adjutant in the defense units set up by the Petrograd Infantry Division.

[1] In November 1917 Jalander was promoted to the rank of lieutenant colonel and was appointed governor of Nyland county.

[3] In September 1921 Jalander was re-appointed minister of war to the second cabinet of Juho Vennola, replacing Onni Hämäläinen in the post.

[3] However, he resigned from the office soon after his appointment due to a conflict over the nomination of Carl Gustaf Emil Mannerheim as the head of the Civil Guard.