The words were written in 1915 during World War I by Hans Leip (1893-1983), a school teacher from Hamburg who had been conscripted into the Imperial German Army. Leip reportedly combined the names of his girlfriend and another female friend. The poem was later published as "Das Lied eines jungen Soldaten auf der Wacht" ("The Song of a Young Soldier on Watch") in 1937 now with the two last (of five) verses added. It was set to music by Norbert Schultze in 1938. Tommie Connor later wrote English lyrics.After the occupation of Belgrade in 1941, Radio Belgrade became the German forces' radio station under the name of Soldatensender Belgrad (Soldiers Radio Belgrad). It could be received throughout Europe and the Mediterranean. A lieutenant working at the station who was taking leave in Vienna was asked to collect some records to broadcast. Amongst a pile he obtained from a second hand shop was the little known 2 year old song "Lili Marleen" sung by Lale Andersen, which up to then had sold only around 700 copies. For lack of other recordings, Radio Belgrade played the song quite frequently