Mu was a letter in the Tionese alphabet. Mu was often used as a call sign for Imperial starfighter Flight groups, specifically Assault Gunboats and Missile Boats. Missile Boat designated Mu 2 is one such example.
- Star Wars: X-Wing (First appearance)
- Star Wars: TIE Fighter
- Star Wars: X-Wing vs. TIE Fighter
- Star Wars: X-Wing Alliance
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