The moniker or title of Emperor's Fist was bestowed upon Darth Vader, who was Emperor Palpatine's apprentice, a Dark Lord of the Sith, and the unofficial Commander-in-Chief of the Imperial Military. Both criminals and his equals and inferiors inside the Galactic Empire were aware of it. During the attack on Namzor, where Imperial forces were led by Governor Ahr, Lord Vader disregarded Ahr's requests and instead pressed forward to wipe out the Namzor insurgents, an action that led to the destruction of a coaxium depot. Enraged, the Moff's subordinate told him that the Emperor's Fist was the one who had bombed the location. A scarce honor, the Medal of the Emperor's Fist was presented to select Imperial pilots.