287th BattleMech Division

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287th BattleMech Division
Disbanded 2784[1]
Nickname The Tobruk Division[2]
Affiliation Star League
Parent Command XLV Corps

The 287th BattleMech Division was a part of the Star League Defense Force Regular Army.


In 2764, the unit was assigned, as a part of the XLV Corps, Eighteenth Army, to the Periphery Military Region, but was moved to an undisclosed are of the Periphery by 2765, to take part in the Periphery Uprising.[3] The 287th survived the war and the Hegemony Campaign, but despite the fate of the 287th being regarded as unknown for several centuries after the fall of the Star League,[3] subsequent publications released in the thirty-first and thirty-second centuries revealed that the 287th almost certainly survived the Hegemony campaign and remained in the Inner Sphere, joining Major General Lauren Hayes and the other SLDF units who chose to join ComStar in support of Jerome Blake. The 287th is believed to have formed the basis of the "mercenaries" used to create the Seventh ComStar Expeditionary Division in 2784.[1] Following Operation SILVER SHIELD in June 2788, in which ComStar's Expeditionary Divisions seized control of Terra, the vast majority of the Expeditionary Divisions were demobilized and their equipment cached for the future, forming the basis of the later Com Guards.[4]


Rank Name Command
Commanding Officers of the 287th BattleMech Division
Major General Bernhard Isaacson 2764[2]




As an SLDF BattleMech division the 287th would have been formed from two Brigades of BattleMech regiments and a brigade of Mechanized Infantry regiments.[5]


  • 2871st Brigade[6]
  • 2872nd Brigade
  • 2873rd Brigade


  1. 1.0 1.1 First Succession War, p. 34: "Those Left Behind (Continued)"
  2. 2.0 2.1 Field Manual: SLDF, p. 213
  3. 3.0 3.1 The Star League, p. 156: "Eighteenth"
  4. Historical: Liberation of Terra Volume 2, p. 117: "ComStar and the Com Guard"
  5. The Star League, p. 133
  6. Field Manual: SLDF, p. 13