I will give you the right answer.
The first thing to understand is:
1: Wuhuan: a branch of the former Donghu people, named after Wuhuan Mountain, now lives in Inner Mongolia Autonomous Region. At this time, the remnants of Yuan Shao, the son of Yuan Shao and his remnants, colluded with the conference semifinals to dominate the three counties of Wuhuan.
2. Historical background: The time was in 207 AD, that is, the twelfth year of Jian 'an. At this time, Cao Cao surrendered to Zhang Xiu, destroyed Yuan Shao and killed the ruble. After several years of fighting, he basically pacified the north and south of the Yellow River to pacify the Northern Expedition.
To sum up, you wrote it when you asked Wu Huan, so his time must be 207 AD, which is the summer of the twelfth year of Jian 'an, because the battle was quickly finished. Jian 'an begins in summer and ends in autumn.
Then what meets these conditions is the group poem "Step out of the Summer Gate"
Walking out of Xiamen is an old topic in Yuefu, also called Longxi West. Xiamen is the gate of Luoyang. Cao Cao's Out of Xiamen is a set of poems he wrote when he marched north to Wu Huan in the twelfth year of Jian 'an.
This group of poems is divided into five parts, starting with the overture Yan, followed by four chapters: Watching the Sea, Winter in October, He, and Though Returning to Life.
Brightly colored
Walking in the rain in the clouds, surpassing the height of Jiujiang. Looking at the similarities and differences, I was pregnant with a trip and didn't know what to do. After Jieshi, I was disappointed in my East China Sea.
See the boundless ocean
On the east coast, climb Jieshi Mountain to see the vast sea.
The sea is so vast that the islands stand high on the sea.
Trees and paraquat are very lush. Autumn wind makes trees make sad sounds, and the sea is surging.
The movement of the sun and the moon seems to come from the vast ocean.
A trip to the sun and the moon, if unexpected;
Han is a talented star, if you take him by surprise.
I am glad to use this poem to express my inner desire.
Winter and October
In October, the north wind lingers.
It's sunny with frost.
Pheasants sing in the morning, and Hongyan flies south;
Storks lurk and bears live in caves.
The money stopped and the crops were harvested.
Set the whole journey and connect with the merchants.
I am glad to use this poem to express my inner desire.
He Han Shuo
The countryside is different. The river is in the dead of winter.
The ship is difficult to sail.
If the cone does not penetrate the ground, it will be deep.
When the water runs out, the ice will dance.
Hermits are poor, brave and chivalrous.
The heart often sighs and complains, which makes people sad.
I am glad to use this poem to express my inner desire.
Ju Chi Shou
Although the tortoise has a long life, it still has time;
The snake rides the fog and eventually turns to dust.
The old horse crouches, aiming at thousands of miles;
The martyrs were full of courage in their later years.
The surplus and contraction period is not only in the sky;
Blessings that nourish grace can last forever.
I am glad to use this poem to express my inner desire.