One after another, kingdoms and lords joined the Holy War, including several indigenous Churches. The border guards of the kingdoms were constantly fatigued from dealing with infiltrators along the borders and eventually stopped caring about small groups penetrating their defenses.
As a large number of civilian adventure groups formed the Holy War Army and entered the fray, causing destruction everywhere, frequent internal strife occurred within the stable kingdoms, which even the powerful military strength of the Church could not suppress.
Gradually, as more and more small groups of the Holy War Army infiltrated, they began to band together into a more formidable force and started to create chaos within, even daring to attack ordinary towns.
Although most were suppressed, there were also some that were breached, and once a town was breached, it inevitably suffered terrible losses.