Stone Wall

Stone Wall is a Legendary 11-man task force, that's famous for its endeavor in the Lubo civil war.

Background
During the Lubo civil war, the Stonewall mercenaries became famous for being the only legendary mercenary group that came out of the Lubo civil war without a single casualty.

Dark Continent Expedition arc
Mercenary Muherr mentions the Stone Wall group in his disclosure of Golem's background.