257th Battle Regiment

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257th Battle Regiment
Formed unknown
Nickname n/a
Affiliation SLDF
Parent Command V Corps[1]


The Two Hundred Fifty-seventh Battle Regiment was a part of the Star League Defense Force Regular Army.


In 2764, the unit was assigned, as a part of the V Corps, Eleventh Army, to District 1 of the Lyran Commonwealth Military Region. It served as a reserve for the Corps, maintaining a presence on Sakhalin that was on the opposite side of the world from the rest of V Corps. This allowed the unit to maintain its independence.[1]

It was later transferred to District 3 by 2765, to take part in the Periphery Uprising.[2] The 257th was destroyed during the Hegemony Campaign.[2]


Rank Name Command
Commanding Officers of the 257th Battle Regiment




As an SLDF Battle regiment the 257th would have been composed primarily of medium to heavy 'Mechs.[3]


  1. 1.0 1.1 Field Manual: SLDF, p. 138
  2. 2.0 2.1 The Star League, p. 144, "Eleventh"
  3. The Star League, p. 133