Doppelsoldner (Germany)

In German folklore, the Doppelsoldner is a ghostly soldier who is said to appear on battlefields. These spirits are believed to be the souls of mercenaries who died in combat but were not paid their wages as promised. Seeking vengeance, they return from the afterlife to collect their unpaid earnings from the living. Encounters with Doppelsoldners can be ominous and unsettling, as they are determined to fulfill their contract, even in death.