There was no singing and dancing, no joy, the sons of Gao Cheng recalled the past time in the Jin Palace, and everyone sighed.

At that time, it was the end of the tenth year of Zhaode (557 AD), and Gao Cheng had just dominated the world, ending more than 200 years of troubled times.

Concerned about the suffering of the people from the war, he pursued a policy of rest and recuperation, and decided to temporarily refrain from fighting the army, so that the people could have a chance to breathe.

It was not until the twelfth year of Zhaode (559 AD) that news came from Goguryeo that the king of Yangwon, Gao Pyongcheng, died violently in Pyongyang.

During the civil war in the Central Plains, Goguryeo was in the midst of civil strife for a long time.

King Yasuhara, the father of Koheisei Sei, snatched the throne of his nephew after his brother King Anzao was assassinated.

Due to the improper position, King Yasuhara set up three wives, but because the eldest lady had no heir, the middle lady and the younger lady each had a son.

After the death of King Anwon, an armed conflict broke out between Goguryeo's royal gamblers, and in the end, Goheeongseong, with the support of his mother clan, the Luqun clan, won the war for the throne.

It's just that the Luqun clan launched a bloody massacre of the small lady's small group clan, which also intensified the domestic contradictions, and the small group of remnants formed separatist forces in the local area, organized the army, and confronted the central government.

The chaos in Goguryeo at that time can be glimpsed from two examples.

In 551 A.D., the Silla general Ju Qifu met his past benefactor, Master Hui Liang, who wanted to repay Master Hui Liang's kindness, and Hui Liang said:

Now that our country is in turmoil and is dying, I hope to be able to live in Silla. ’

The second example is the year after Huiliang left the country, in the original time and space, Gao Yang sent Cui Liu, a son of the Boling Cui clan, to Goguryeo to ask for the Central Plains people who had fled to Goguryeo since the end of the Northern Wei Dynasty.

Gao Pingcheng talked about him left and right, which made Cui Liu angry and knocked Gao Pingcheng out of bed with one punch.

After receiving this punch, Gao Pingcheng, who was sixteen years old at the time, dared not speak out, so he had to let Cui Liu leave with 5,000 households.

These two examples are enough to illustrate the chaos in Goguryeo at that time.

Gao Pingcheng is not an incompetent and cowardly person, according to historical records, he was born smart, and when he reached adulthood, he was heroic

At the beginning of his ascension to the throne, Gao Ping was only eight years old, and power was in the hands of his uncle.

The blood feud between the Luqun clan and the Xiqun clan also made it difficult to resolve the contradictions between the two political groups, and the war between them seriously consumed Goguryeo's national strength.

It wasn't until Gao Pingcheng's uncle died of illness that he was able to govern himself.

Under Gao Pingcheng's mediation, the domestic situation was barely stabilized.

Perhaps giving him more time will surely resolve the hatred between the two races.

But God did not fulfill people's wishes, and Gao Pingcheng, who ascended the throne at the age of eight, only served as king for fifteen years, and when he died violently, he was only twenty-three years old.

His eldest son, Gao Yang, succeeded to the throne.

Gao Cheng did not let his guard down because of Gao Pingcheng's death, he knew that the contradictions in Goguryeo were resolved in the hands of Gao Yang.

In the late reign of Gaoyang, he even dared to covet the land of Liaoxi of the Sui Dynasty.

And his son is the famous Liaodong dung soil minister.

Just when Goguryeo was now suspicious, Gao Cheng decided to nip the threat in the bud.

The war machine of Gaoqi, after only two years of rest, was back in operation.

Like the destruction of the Yuwen regime, Cui Che still did not choose to drive the expedition in person, he took Duan Shao as the head of the march of Liaodong Road, and planned to select a prince to serve as the supervisor of the army, and in the spring of the next year, 100,000 soldiers were recruited, 150,000 soldiers were recruited from Hebei Prefecture, and 300,000 people were sent to Goguryeo.

The reason why he chose to wait until the second year to send troops was also because Goguryeo was now weakened after years of civil war.

The only difficulty in destroying the country is to ensure logistics.

The roads in western Liaoning are difficult to travel, and the well-known corridor in western Liaoning is still a muddy place today, and it is difficult for carriages and horses to pass, whether it is marching or transporting grain, they have to pass through thousands of miles of mountainous terrain.

When they finally got out of the mountains, there were thousands of miles from north to south and more than 200 miles from east to west to Liaoze in front of them.

Later generations all know that Yang Guang conquered Goguryeo three times, but in fact, before Yang Guang, Yang Jian did it once, and he ordered Gao Gong to assist Yang Liang, the king of Han, and lead an army of 300,000 to conquer Goguryeo by land and water.

As a result, I didn't even see the face of the Goguryeo people, 300,000 Sui troops, eight or nine out of ten dead, and only tens of thousands of people fled back.

It turned out that Gao Gong marched to the Liao River, coinciding with heavy rain in the sky, for more than ten days, the road was muddy and difficult to walk, the grain and grass in the rear could not be transported, and the plague broke out in the army, so he had to retreat, and died of disease along the way, and countless people died of starvation.

As for the sailors, they were not much better, and they were not far from the sea, when they encountered wind and waves, and more than half of the ship was damaged.

Gao Cheng set the time for sending troops until the beginning of spring next year, firstly, considering that the troops would be sent in summer, regardless of the climate or road conditions, it would be easier to walk.

Secondly, it is also necessary to take time to hoard materials in Liaodong first, and at that time, there is no need to travel thousands of miles from Youzhou to transport them.

Duan Shao and the supervising army will lead the off-duty soldiers in advance and assemble in Liaodong to take care of the grain and grass materials.

Gao Cheng did not designate a candidate for supervising the army, but summoned Gao Xiaozhang, the king of Jin, Gao Xiaoyu, the king of Qin, Gao Xiaowan, the king of Zhao, and Gao Xiaowan, the king of Lu, and asked the four to draw lots.

As we all know, among the sons, only these four people are the most valued by Gao Cheng.

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