Due to the open terrain and abundant sunlight, the area where the Viglaf division was stationed was densely vegetated, and the sight of verdant greenery was a sight to behold the eyes of the officers and men who had been walking through the barren land of the deep valley for days. However, considering that the dense vegetation could provide cover for enemy lurking and night attacks, Vigraf ordered the sappers to clear all the vegetation around the camp as soon as he set up camp, cut out many wooden stakes with two ends of the wood, erected a fence around the camp, and pulled barbed wire. Outside of the fence, a large area of barren grass was set on fire, mines were planted, and magic alarms were installed. If the enemy tries to sneak up on the camp at night, they will suffer from this heavy defensive line.

Compared to the makeshift camp built by the Viglaf Division, the fortifications that the Order of Naro had spent countless painstaking efforts to build in and around the Dusk Fortress were obviously much more spectacular. In Vigraf's opinion, the magnificent fortress in the middle of the valley was not as large as his hometown of Kitland, but at least not inferior to the former "war-plagued fortress", enough to garrison an army of 100,000.

Compared to the War-Scourge Fortress, the Dusk Fortress has three unique advantages. One is that this fortress is protected by a maze lock, and if you can't break the maze barrier, even thousands of troops will not be able to attack the fortress. Secondly, the enemy troops stationed in the "Twilight Fortress", except for a few necromancers and priests of Naraku, the vast majority of them are undead, which greatly reduces the logistical burden borne by the Naraku Order to hold the fortress, even if there is not even a grain of food in the fortress, the priest can use the "food making technique" to solve the problem of the diet of a small number of living people, and tens of thousands of undead creatures do not need food at all, and they will not feel tired from fighting day and night, which is a huge advantage that the army composed of living people can never compare. Finally, the Dusk Fortress was not a lonely fortress, as cobweb-like trenches were dug outside the walls, spreading outward in circles and radially no less than three miles in radial depth, each with solid pillboxes and batteries built behind each trench. No matter which direction the Koras army attacked, it would encounter heavy resistance and was destined to be difficult.

In addition to the above three characteristics, Vigraf also noticed that the enemy positions are often infested with large swarms of colorful poisonous insects, which corroborates the information he received this morning: General Klautz Holstein, who was the head of the Knights of the Far East in the Empire, has now been resurrected by "Black-robed" Outlaw, and transformed into an extremely terrifying legendary monster "Worm Walker", with the evil power of manipulating poisonous insects and creating derivative bodies. Just a month ago, Krautz the Worm Walker was appointed commander of the "Twilight Fortress" by Outlo the Black, hoping to use Krautz's command to strengthen the fortress's defenses against expeditionary forces from the Far East.

Accompanying Krautz into the "Fortress of Twilight" are countless highly poisonous worms. After more than a month of operation, Krautz has now transformed the "Dusk Fortress" into a "creeping fortress", and the walls are full of "creeping derivatives" infected with poisonous insects, in addition to the possibility of lurking powerful worm-like monsters like "giant worms". All these changes created new challenges for Vigraf and the Far Eastern officers and soldiers under his leadership, who had to expend more energy and sacrifice to conquer this fortress that was both strong and disgusting.

Vigrav strictly adhered to the strategic guidelines set by the Allied Command, ignored all provocations of the enemy, held his position and did not take the initiative to attack.

Over the next few days, Krautz attempted several attacks on positions in the Far East. Vigraf commanded his troops to meet them head-on, but after defeating the invading enemy, they did not take advantage of the victory, so that Krautz's intention to lure the enemy was frustrated, and the confrontation could only continue.

In the tense atmosphere, the balance of power between the two sides of the battlefield is rapidly changing. By 2 April, three infantry divisions, one artillery division, and the separate armored knight brigade under the command of General Bloom had arrived on the battlefield, forming an encirclement of the Dusk fortress.

At 8:10 a.m. on 3 April, all the commanders and fighters of the Southern Front Coalition Command headed by Marshal Alexei boarded the "Dawn" airship, set sail from Mochizuki City, and arrived at the frontline at 3:20 p.m. on the same day under the escort of the 1st, 2nd, and 3rd Air Fleets of the Far East.

As soon as he got off the airship, Marshal Alexei, accompanied by Conrad, Bloom, Vigraf, Ivan, Alexander and other generals who had arrived first, personally inspected the front line and expressed his condolences to all the officers and men.

In the evening of the same day, the command of the coalition forces, transferred to the front, held an operational meeting. After thorough discussion, Marshal Alexei finally adopted Vigrav's suggestion and decided to organize a battle at noon the next day, pushing out the enemy positions on the perimeter of the Dusk Fortress and forcing the enemy to retreat within the protective range of the fortress's locks, laying the foundation for the subsequent siege battle.

On April 4, at 11 o'clock in the morning, the commanders of the 2nd Artillery Division in the Far East, which had long been ready for war, finally received an order from the headquarters to begin artillery preparations for the general offensive under the command of Lieutenant General Ilya Conrad.

At 11:05 a.m., the 2,500 cannons displayed at the rear of the position roared at the same time, and in just one hour, hundreds of thousands of heavy shells were rained down, flattening all the buildings above the surface of the outer fortress at dusk.

The hour-long bombardment was temporarily suspended, and the enemy positions had turned into a sea of fire, billowing black smoke rising into the sky. When the artillery noise subsided, the Far Eastern airship cruising over the battlefield opened its hatches, and Maria Gangyu, the commander of the First Fleet Air Force and major of the Far East Air Force, led the giant eagle to break away from the mothership and fly over the enemy positions covered by artillery fire to conduct reconnaissance.

Maria Steelfeather and her Giant Eagle Aviation, most of whom have a druid class level, collectively use the 2-ring "Wind Magic" to set off a storm out of thin air, blowing away the smoke that fills the battlefield in order to observe and photograph the ground situation more clearly. Flocks of giant eagles swooped down in the air, their wingtips almost touching the scorched earth of gunsmoke, taking in the horrific scene on the battlefield.

Pictures of the battlefield taken by the Maria Steel Feather Wing in the "mirror" were quickly sent to the headquarters, and judging from the pictures, the artillery bombardment on the Far Eastern side was remarkable, except for the positions close to the walls of the "Dusk Fortress" that were within the range of the fortress guns, and were not baptized by artillery fire, and the outer positions were not spared, and were bombarded by the artillery, and there was almost no sign of survivors.