"The experimental siege of Perugia City was a huge success."
It wasn't just a success on the battlefield, but also a validation of the feasibility of the "World Rule."
The knights who participated in the war received enhancements to their Mental Resistance due to the influence of the Siege Book after capturing victory in the siege.
Additionally, the Expeditionary Army confiscated a certain amount of Chaos Materials, as well as "Unique (Purple)" quality Chaos Equipment, specifically Lord Ramsden's battle equipment, the Sun and Moon Shields... It belonged to a rare set-type equipment.
When the two items were used as a set, they would produce a set effect.
"Demon King Castle"
The Siege Forces assembled in the grand hall area and were awarded "War Ribbons."