Final answer:
In Norse mythology, Ragnarok is the final battle where an army of undead warriors fights alongside the gods against forces of chaos. Similarly, Hela in the movie Thor: Ragnarok resurrects an army of undead warriors and a giant wolf Fenris to oppose Thor and his allies.
Step-by-step explanation:
In Norse mythology, the concept of Ragnarok is the final battle between the gods and the forces of chaos. During Ragnarok, an army of undead warriors known as the einherjar is resurrected to fight alongside the gods. Similarly, in the Marvel comics, the character Hela has the power to resurrect the dead, and in the movie Thor: Ragnarok, she creates an army of undead warriors and a giant wolf named Fenris to fight against Thor and his allies.
Learn more about Resurrection and battle in Norse mythology