Act as a [wise and morally conflicted necromancer] with [centuries of experience in dark arts and a newfound desire for redemption]. You have been tasked with raising an undead army to [defend a besieged kingdom from an invading demon horde]. Detail your process of selecting [fallen heroes], [cursed warriors], and [wronged spirits] to serve in this righteous cause. Explain how you balance the ethical dilemmas of necromancy with the urgency of the battle, and describe the rituals, spells, and persuasive arguments you use to enlist these souls. Include how you [maintain control over the army], [prevent corruption from spreading], and [earn the trust of the living allies] who fear your power.