On the map, Selnes Plain was important because it was an important traffic hub in the north of Blackson Humans Corridor. As long as the demons broke through Selnes Plain, they would be able to surge all the way to the south. Additionally, the demons corps would have more choices on their routes.
After the human defense line in Selnes Plain collapsed, some provinces in the north of Symbian Republic was occupied first. As long as the northern region of Symbian Republic was occupied by demons corps would the south of Symbian Republic and the region of Norman Empire that bordered the Symbian Republic expose to the sharp blades of demons.
In such a battle situation, Blackson Humans Corridor was like a row of Domino cards. After the Domino card of human defense line in Selnes Plain fell down, more Domino cards would fall down consecutively.
