Why Didn’t Voldemort Make His Death Eaters Take the Unbreakable Vow?

The Unbreakable Vow is one of the most dangerous spells in Harry Potter—break your promise, and you die. So why did Voldemort, a wizard obsessed with loyalty and terrified of betrayal, never force his Death Eaters to take one? It could have stopped Snape, Karkaroff, Regulus Black, and countless others from turning against him. In today’s Hogwarts lesson, we uncover why Voldemort never used the Unbreakable Vow to control his Death Eaters—from the spell's limitations and the Dark Mark to Snape's double life, Wormtail's silver hand, Narcissa Malfoy's betrayal, and Voldemort's obsession with power and control. Turns out, one simple magical promise could have changed both Wizarding Wars forever.