During the Galactic Civil War, the Empire blockaded the Endocray sector, suspecting Rebel activity in the area.
The Rebel Alliance launched an operation to destroy the blockade control center on Argovia. The cargo ship captain Leona Makk managed in forcing the blockade and drove an Alliance strike team to the planet. On Argovia, the slicer Battz gave them hacked ID card to access the complex. The rebels managed in penetrating discreetly the center and placed explosives to destroy it.
After the destruction of the center, the Imperials couldn't maintain efficiently the blockade and the Endocray sector was reopened.