Der Wehrwolf [note 1] is a novel by German journalist and writer Hermann Löns, first published in 1910.

[1] The Thirty Years' War is at its height while the peasantry suffers under countless marauders.

Harm Wulf gathers allies until 121 men are in the Alliance of the Wehrwolf.

Published in 1910, Der Wehrwolf became a bestseller in Germany with its nationalist content.

Near the end of the Second World War, young Luftwaffenhelfers and children were encouraged to read the novel to promote guerrilla warfare against the Allies (to act like a We(h)rwolf).