Väinö Linna was a Finnish author. He gained literary fame with his third novel, Tuntematon sotilas, and consolidated his position with the trilogy Täällä Pohjantähden alla. Both have been adapted to a film format on several occasions; The Unknown Soldier was first adapted into a film in 1955 and Under the North Star in 1968 as Here, Beneath the North Star, both directed by Edvin Laine.

The Unknown Soldier or Unknown Soldiers is a war novel by Finnish author Väinö Linna, considered his magnum opus. Published in 1954, The Unknown Soldier chronicles the Continuation War between Finland and the Soviet Union during 1941–1944 from the viewpoint of ordinary Finnish soldiers. In 2000, the manuscript version of the novel was published with the title Sotaromaani and in 2015, the latest English translation as Unknown Soldiers. A fictional account based closely on Linna's own experiences during the war, the novel presented a more realistic outlook on the formerly romanticized image of a noble and obedient Finnish soldier. Linna gave his characters independent and critical thoughts, and presented them with human feelings, such as fear and rebellion.