The Sturmlied ("Storm Song" or "Assault Song") was the de facto anthem of the SA until it was gradually supplanted by the Horst-Wessel-Lied.
History
The lyrics were written by National Socialist poet Dietrich Eckart, with the second stanza being written in 1919, the third in 1921 and finally the first in 1923. The stanzas were later rearranged into the now common order. The music was composed by Hans Ganßer in 1921. The third stanza was usually excluded in the Sturmlied as it does not fit in the rhyme scheme of the first two stanzas.
The phrase "Deutschland erwache!" ("Germany, awaken!") was taken from this poem and came to be one of the most influential slogans of the NSDAP.
References
Sturmlied Wikipedia(Text) CC BY-SA