Three days later, when Yakov cherkaski led 4000 Russian troops to the city of bolozko, a simple fortress stood in front of them.


    This bastion is a "non-standard" Vauban bastion. Although its middle dike is very short, it can ensure that the rifle range can fully cover this area. In order to prevent the siege gun from hitting the middle embankment directly, a concave fort was built in front of the middle embankment of the fortress, and some Musketeers were assigned here to strengthen the defense of the trench.


    But there is no main fortress above the core triangle fortress. Originally, there should be a main fortress at the slightly higher position of the triangle fortress. Artillery is mounted on the main fortress so that the artillery on the main fortress can surpass and shoot. At the same time, artillery is also arranged on the triangle fortress to form a part of cross fire. But because of time constraints, the main fortress was abandoned.


    Where Yakov cherkaski could not see, there were hidden roads and garrison stations. These are bunkers to counter the former infantry. In order to prevent the enemy''s longitudinal fire, Chechen they also set up many horizontal walls in the hidden road.


    The whole bastion without main fortress is mostly built of thick soil. The reason why bricks and stones are not used is not only due to the lack of time, but also because the soil can effectively absorb the energy of shells. As for those places where bricks and wood have to be used, the mercenary regiment is also covered with thick soil on the outside.


    Yakov cherkaski had an instinctive resistance to attacking the bastion. In fact, it often took months to conquer a fortress in that era.


    Yakov cherkaski sent rangers to investigate the other walls of the borotsk castle. He came to as like as two peas: North and West.


    Compared with Cherchen, Yakov cherkaski certainly knew that Werner and Mia telsk castle were also under attack by the Czar''s army, but he did not dare to ensure that his own army would win in those two directions or could delay the possible reinforcements.


    Yakov cherkaski didn''t want to be caught between two sides more than the losses he had to bear to attack the fortress.


    So Yakov cherkaski arranged 800 troops to the west, and the main force besieged the fort.


    Soon, the Russian army built an artillery position. Twelve guns lined up in turn and aimed at the fort guarded by the mercenary regiment.


    With the command of the artillery commander, the artillery skillfully pushed the gunpowder and shells into the muzzle. After adjusting the muzzle angle, the artillery roared like a dragon.


    Most of the first shells fell around the fort, and only one of them hit the fort.


    The Russian artillery adjusted the angle of the artillery and loaded it again. This time, the accuracy of the shells was greatly improved, and most of the shells hit the fortress.


    The next morning, the Russian artillery positions poured fire on the fort. But the fortress guarded by the mercenary regiment is really a dead silence. No matter how the enemy shelled, he did not launch a counterattack. It was the artillery in the borotsk castle that fired several times.


    Pedro carefully poked half his head behind the parapet. His field of vision was full of smoke, which was the dust caused by shells hitting the fortress. Although Yakov cherkaski''s shelling was frightening, if it was a complete fortress, the damage to the fortress would be minimal. Because there were no reliable grenades at that time, most of the shells were solid. After they hit the fortress, the energy is absorbed by the thick soil on the fortress.


    But the mercenary regiment spent a few days building a simple version of the fort, but it did not have such a strong anti shelling ability, and the number of guns in the fort was seriously insufficient.


    Pedro retracted his head behind the parapet. He leaned back against the breast wall, took out a pinch of tobacco and put it into his pipe. The reason why it often takes months to attack a fortress is that the artillery can not cause substantial damage to the fortress in a short time, and the attacking party can only bombard for a long time in order to create a large enough gap. Under normal circumstances, infantry will never attack before opening the gap.


    But there is an exception to everything. Chechen has no confidence in how long his fortress can withstand shelling. So Chechen arranged for his uncle Pedro to guard against possible sneak attacks inside the breast wall.


    Pedro lit his pipe, took a comfortable sip, and then spit out a few circles leisurely. As a veteran, he was already familiar with the environment of gunfire. He had experienced even more fierce gunfire. But now the recruits of the mercenary Corps don''t have this determination. As soon as they heard the gunfire, they didn''t distinguish the distance of the gunfire, so they hugged their heads and shrank up.


    "We have to train them in the future," thought Pedro.


    Gradually, Pedro heard and felt that the Russian artillery had obviously decreased, and the firing frequency was not so dense at the beginning. He hurriedly put his head out of the breast wall again, which startled him - in front of him, there were another Russian infantry array. Yakov cherkaski only used half a day''s artillery preparation to let the infantry attack, and the fort was blasted out of a gap in half a day.


    Pedro hurried into the garrison.


    "The Russian army, the Russian army is going to attack," Pedro shouted to the people hiding in the garrison.


    Everyone stood up. Although most of the soldiers were full of panic in their eyes, they entered the position under the leadership of their captain.


    "Fedot, wait a minute." Chechen pulled fedot who was about to lead the team out.


    "What''s the matter? Commander."


    "You stay here, the musketeers are under my command," Chechen said to fedot.


    He still remembered the agreement with fedot that fedot would not shoot his compatriots.


    "Captain!" fedot immediately knew Cherchen''s intention. He looked at Cherchen gratefully. At this time, the players under fedot looked at them strangely. They didn''t know that fedot was Russian.


    "You stay here and help take care of the wounded." fedot also gave a reasonable reason for the players.


    Then he picked up a musket leaning against the wall and jumped out of the garrison.


    Yakov cherkaski''s army is still a classic offensive formation. The only difference is that because there is no deep trench in the fort, the Russian army also omitted to send cannon fodder to fill the trench.


    The Russian new arms gunmen in the first row stood within the effective range of the musket, set up the support and aimed at the breast wall and gap of the fort.


    “fire！”


    At the command of the Musketeers commander, the new army Musketeers skillfully pulled the trigger.


    A row of bullets hit the breast wall, and the soil on the breast wall fell through a sieve.


    The soldiers of the mercenary regiment consciously didn''t have a probe. They were waiting for Chechen''s "stand up" command.


    After two rounds of shooting, the Russian infantry finally set out.


    Seeing the red flag waved by the scout in charge of observation, Che Chen decisively issued the order to stand up.


    The Musketeers got up quickly. They loaded gunpowder and bullets into the gun chamber according to the procedure during training.


    The first row of musketeers put their muskets on the breast wall and aimed at the Russian army.


    "Boom."


    The four pound gun, which had been silent, took the lead. The shells hit a bloody alley in the infantry square of the Russian army.


    Crackle crackle.


    Muskets were also added to the Quartet.