40 members (les immortels)

Les Immortels, or "The Immortals," refer to a legendary group of 40 elite fighters in ancient Persian history, notably associated with the Achaemenid Empire. They served as an elite military unit, highly regarded for their skill, discipline, and loyalty. The name "Immortals" comes from their continually replenished ranks—when one warrior fell, another replaced him instantly—giving the impression they were never fewer than 40. They played a crucial role in Persia's military campaigns and symbolized the strength and unity of the empire. Their legacy endures as a symbol of formidable and disciplined warriors.