21st Royal BattleMech Division

Star League Logo.png
21st Royal BattleMech Division
Unit Profile (as of 2770)
Nickname The Antaeus Division
Parent Formation XXXIX Corps
Formed unknown


The Twenty-first Royal BattleMech Division was a part of the Star League Defense Force Regular Army. It was one of the SLDF's Royal units, which consisted of troops from the Terran Hegemony.


In 2764, the unit was assigned, as a part of the XXXIX Corps, Tenth Army, to District 3 of the Free Worlds League Military Region, but was moved to an undisclosed area of the Periphery.[1] The Twenty-first was destroyed during the Hegemony Campaign.[1]


As an SLDF BattleMech Division the Twenty-first would have been composed with two Brigades of 'Mech regiments and one brigade of Mechanized Infantry regiments.[2]


21st Royal BattleMech Division [3]

  • 211th Royal BattleMech Brigade
  • 212th Royal BattleMech Brigade
  • 213th Royal Mechanized Infantry Brigade


  1. 1.0 1.1 The Star League, p. 143, "Tenth"
  2. The Star League, p. 133
  3. Field Manual: SLDF, p. 13