406th BattleMech Division

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406th BattleMech Division
Unit Profile (as of 2764)
Nickname Grand Rift Division
Parent Formation LIX Corps
Formed unknown


The Four Hundred Sixth BattleMech Division was a part of the Star League Defense Force Regular Army.


In 2764, the unit was assigned, as a part of the LIX Corps, Twentieth Army, to the Periphery Military Region.[1]The 406th was destroyed during the Periphery Uprising in 2765.[1]


As an SLDF BattleMech division the 406th would have been formed from two Brigades of BattleMech regiments and a brigade of Mechanized Infantry regiments.[2]


  • 4061st Brigade [3]
  • 4062nd Brigade
  • 4063rd Brigade


  1. 1.0 1.1 The Star League, p. 158, "Twentieth"
  2. The Star League, p. 133
  3. Field Manual: SLDF, p. 13