Jääkärimarssi - Jäger March - By Jean Sibelius 

Jääkärimarssi (March of the Jaegers composed by Jean Sibelius 1917)
Jääkärimarssi (Jääkärien marssi) on Jean Sibeliuksen säveltämä sotilasmarssi vuodelta 1917 suomalaisen jääkärin Heikki Nurmion (1887-1947) kirjoittamiin sanoihin. Jääkärimarssi sävellettiin alun perin mieskuorolle ja pianolle, ja Sibelius sovitti sen myöhemmin mieskuorolle ja sinfoniaorkesterille.
The Jäger March (Finnish: Jääkärimarssi, originally Jääkärien marssi) was composed by Jean Sibelius in 1917 to the words written by the Finnish Jäger, Heikki Nurmio who served in Libau, in the Royal Prussian 27th Jäger Battalion of the Imperial German Army.[1] This unit was fighting against the Russian Empire, of which the Grand Duchy of Finland still was a part. The words were smuggled into Finland to Sibelius, who composed the song in Järvenpää.
The Jäger March, a military march, was originally written for male chorus and piano, and Sibelius later arranged it for male chorus and symphony orchestra.