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.
Charles Hamilton Smith
…the advantages of grey (and to a lesser extent, green) uniforms over red ones common at the time, and recommended that grey be adopted for riflemen and light infantry. The British Army did not heed his advice, with green becoming the colour associated with light infantry. Initially commissioned into the 60th (Royal…
Painting of jägers of the Electorate of Hesse
Agrianian peltast, c. 4th century BC
The pioneer company of the Imperial German Army's 27th Jäger Battalion returning from a parade in Liepāja, 1917
The Georgian Land Forces' 23rd Light Infantry Battalion on joint military exercise with US Marines, 2005