406th BattleMech Division
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|406th BattleMech Division|
|Unit Profile (as of 2764)|
|Nickname||Grand Rift Division|
|Parent Formation||LIX Corps|
The Four Hundred Sixth BattleMech Division was a part of the Star League Defense Force Regular Army.
- 4061st Brigade 
- 4062nd Brigade
- 4063rd Brigade
- The Star League, p. 158, "Twentieth"
- The Star League, p. 133
- Field Manual: SLDF, p. 13