Ruben Lagus
| Ernst Ruben Lagus | |
|---|---|
| Born | October 12, 1896 Koski Hl, Grand Duchy of Finland, Russian Empire | 
| Died | July 15, 1959 (aged 62) Lohja, Finland | 
| Allegiance | 
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| Service | |
| Years of service | 1915–1947 | 
| Rank | Major General (1941) | 
| Commands | 
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| Battles / wars | |
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Ernst Ruben Lagus (12 October 1896 – 15 July 1959), better known as Ruben Lagus, was a Finnish major general, a member of the Jäger Movement and the recipient of the first Mannerheim Cross. He participated in the Eastern Front of World War I as a volunteer of the 27th Royal Prussian Jäger Battalion, in the Finnish Civil War as battalion commander and as a supply officer in the Winter War. During the Continuation War, he commanded an armoured brigade, later division, which had a significant role in the influential Battle of Tali-Ihantala.