War of Shadows

Book 1 of Fire Emblem: Monsho no Nazo is considered the War of Darkness. The events in the War of Darkness were also covered in Fire Emblem: Shadow Dragon and Fire Emblem: Ankoku Ryuu to Hikari no Ken. In the War of Darkness, Marth leads the Akaneian League in battle against the Shadow Dragon Medeus. Marth defeats Medeus with the Falchion. Book 2 of Monsho no Nazo is called the War of Heroes.