Jiang Qiao issued an extermination task, the so-called extermination meaning no creature was allowed to survive within a seven-hundred-meter radius of the initial stronghold.
This task was published only after Jiang Qiao confirmed that all the soldiers under Lyla had left Biland Island.
As for why it was a seven-hundred-meter radius, it was because the maximum effective distance of the Holy Spirit system was one and a half kilometers.
This was a setting Jiang Qiao had only recently learned about; for instance, a player firing an anti-tank gun might have a range exceeding one and a half kilometers, but beyond that distance, effects like levitation and back attacks would not manifest.
Similarly, the farthest distance players could see monster health bars was also just one and a half kilometers.