Jäger is a German military term referring to specific light infantry units.
Hessian Jäger 1835–1843
Franz Rudolf Frisching in the uniform of an officer of the Bernese Jäger Corps with his Schweizerischer Niederlaufhund, painted by Jean Preudhomme in 1785
Jägerpatrouille, painting by Richard Knötel (1910)
Royal Bavarian Jäger Battalion No. 2 Aschaffenburg. Oberjäger, field marching order, around 1910
Light infantry refers to certain types of lightly-equipped infantry throughout history. They have a more mobile or fluid function than other types of infantry, such as heavy infantry or line infantry. Historically, light infantry often fought as scouts, raiders, and skirmishers. These are loose formations that fight ahead of the main army to harass, delay, disrupt supply lines, engage the enemy's own skirmishing forces, and generally "soften up" an enemy before the main battle. Light infantrymen were also often responsible for screening the main body of a military formation.
Portuguese Army light infantryman (caçador) of the Peninsular War.
Agrianian peltast, c. 4th century BC
French light infantry in the woods during the Napoleonic era, by Victor Huen.
The pioneer company of the 27th Jäger Battalion returning from a parade in Liepāja (Libau) in 1917.