"Stay alert for traps; they're not gonna give up the palace easily."

—Marcus Fenix predicting the potential resistance of the Palace Guard

The Palace Guard was the counterpart to the Theron Guard. They were made up of the most decorated accomplished Drones in the Locust Horde’s army, and were charged with the defense of the Palace and the Queen. During the Lambent Pandemic, they became the most common soldiers of the Queen's Guard.