A day had passed since his spar with Vana and he found himself in the command room once again. This time they were gathering after a large operation took place. The operation was the recapture of Neo-Magis that had been taken by the Grail and the Grail had been worse than they originally thought.
According to the ground troops, the tactics the Grail deployed were repulsive. There is the concept of using people as shields against large overwhelming attacks that would lay waste to the enemies. But the Grail decided to literally use the sirens and civilians as living shields.
They were tied to walls or to the side of buildings. Jace's people could not risk attacking because of what they were doing. So they suffered more injuries and the first of a few casualties. But they still took the city because specialists went in with hand-to-hand combat weapons and slaughtered the one hundred or so members of Grail that had been occupying the city.
