In 852, the Yunfu army with 350,000 troops forced across the Leiyan Mountains to lead the leader, is the son of the famous general of Yunfu Haochen, Haochen stormed the Leiyan Mountains Gaxi camp, but the Leiyan Mountains are easy to defend and difficult to attack, and the 150,000 elite troops of Gaxi are stationed here, Haochen led the troops to attack the camp of the Gahi defenders three times, but was driven out of the city three times, and the Yunfu army was injured 80,000 in the 10th storm, but failed to move forward.

Haochen ordered the three armies to stand in place and wait for reinforcements. The defenders of Gahi did not dare to relax at all, and monitored the Yunfu garrison day and night.

On May 5, 852, the night was dark, Haochen ordered the three armies to wear light armor, and took advantage of the dark night to surprise attack Gahi, Gaxi laughed and re-prepared the rolling stone and sasswood, this battle Haochen divided the 200,000 army into 5 roads, and attacked in turn, the two sides fought from the dawn of the night, and from the dawn of the battle, Gaxi did not give an inch.

Yunfu is difficult to go further. In the dark of night, Haochen withdrew his troops and rested in place, and the Gahi soldiers were so exhausted that they couldn't even raise their swords, and after the enemy, the Gahi soldiers leaned directly against the wall and slept in their clothes.

That night, Haochen summoned the three armies and issued a call for the final battle against Ghahi. Yunfu used the tactics of rotation warfare, and the physical strength of the soldiers had also returned to the best level at this time.

That night, the Yunfu army attacked again, and Ghahi heard that the enemy was coming, so he hurriedly got up and fought. When the two sides were fighting, they suddenly heard the sound of shouting and killing behind the Lei Yan Mountain Range, and the Gahi soldiers looked at it and saw that the station behind them had been washed away by the Yunfu army, and more than 100,000 Yunfu fresh forces were like the angry torrent of the Spring River, and the Gahi defenders were crushed at the touch of a touch, and the Yunfu double-sided attack, and the Gahi defenders fled to death, and the Lei Yan Mountains were finally conquered by Yunfu.

The world shook, and the world wondered why the Yunfu army appeared behind the Garhi defenders like divine soldiers.

100 years later, Yunfu finally revealed its secret. It turned out that in 815, Emperor Yunfu summoned a group of top celestial engineers and famous generals at the palace and asked them how they could overcome the thunder and flame natural danger.

After discussing for a long time, everyone came to a conclusion that if they wanted to cross the Lei Yan natural danger, it would be absolutely impossible to attack by force, and the only way was to dig a tunnel, transport troops from the tunnel, and attack from both sides, so as to capture the Lei Yan Mountain Range.

The emperor then entrusted this arduous task to the celestial scholar Alayya, who was then a celestial worker. Ordered him to lead a group of people to come up with a way to penetrate the Thunder Flame Mountains.

Lai did not fail in his mission, and finally found a soft soil after going through many difficulties and dangers, and finally pierced the Leiyan Mountains in 825.

From then on, the Lei Yan Mountain Range could no longer stop Yunfu's million-strong division. On February 8, 853, Yunfu led an army of 850,000 to attack Gahi, and Gahi was defeated in successive battles, but Yunfu was about to unify Gahi.

Sinai sent troops to aid Ghahi. There is also a mysterious organization Suzaku in the country, Suzaku is strong in martial arts, and elusive, Yunfu has many generals died in the hands of Suzaku, Yunfu people are panicked at this time, and have to retreat and station at the foot of Lei Yan Mountain.

The First Crusade failed.