253rd Mechanized Infantry Division

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253rd Mechanized Infantry Divisiion
Unit Profile (as of 2767)
Nickname Costanza's Irregulars
Parent Formation Star League Defense Force
Formed unknown


The 253rd Mechanized Infantry Division was a part of the Star League Defense Force Regular Army.


In 2764, the unit was stationed on Kestrel[1], assigned as a part of the XXXIII Corps, Third Army, to District 2 of the Federated Suns Military Region, but was moved to an undisclosed are of the Periphery by 2765, to take part in the Periphery Uprising.[2] The 253rd was destroyed during the Hegemony Campaign.[2]


The commanding officer in 2764 was Major General Hudson Apostolov.[3]


The Mechanised Infantry Divisions of the Star League were used offensively to exploit gaps in the enemy front created by the BattleMech Divisions. They also bore the brunt of defensive actions.

Composition History[edit]

The Division comprised two Brigades of Mechanised Infantry and a single BattleMech Brigade. Also attached was a Ground Aero Wing.[4]


  1. Field Manual: SLDF, p. 252, "SLDF - Federated Suns Military Command Map"
  2. 2.0 2.1 The Star League, p. 151, "Third"
  3. Field Manual: SLDF, p. 61, "253rd Mechanized Infantry Division"
  4. The Star League, p. 133