What are the poems praising "border guards"?

The verses praising the "border soldiers" are as follows:

"Liangzhou Ci"?Wang Han

Luminous cup of grape wine,

If you want to drink Pipa, urge me immediately.

Don’t laugh when you are lying drunk on the battlefield.

How many people have fought in ancient times.

"Ancient Military Journey"? Li Qi

In the daytime, I climbed the mountain to watch the beacon fire, and at dusk, I drank my horse and crossed the river.

Pedestrians are fighting against the wind and the sand is dark, and the princess Pipa is full of resentments.

There is no castle for thousands of miles while camping, and rain and snow fall all over the desert.

Hu Yan flew away every night crying, and Hu Er shed tears.

When you hear that the jade gate is still covered, you should throw your life away.

Every year the bones of the war are buried outside, but it is rare to see grapes entering the Han family.

"Joining the Army"? Wang Changling

The long clouds and dark snow-capped mountains in Qinghai,

The lonely city looks at Yumen Pass in the distance.

The yellow sand will wear the golden armor in a hundred battles,

The Loulan will never be returned until it is broken.

"Moon over Guanshan"? Li Bai

The bright moon rises out of the Tianshan Mountains, among the vast sea of ??clouds.

The wind blows tens of thousands of miles across Yumen Pass.

The Han Dynasty descended to the Baideng Road, and the Hu took a peek at the Qinghai Bay.

The land was conquered, but no one returned.

The garrison guests looked at the border towns, thinking about returning home with many sad faces.

The tall building is like this night, and I have no time to sigh.

"Looking at Jimen?"? Ancestor's chant

As soon as Yantai looked at the guests, they were frightened, and the sound of drums and drums made the Han generals camp.

The cold light of thousands of miles creates snow, and the dawn on three sides stirs up dangerous signals.

The beacon fire on the battlefield is connected with the moon, and the clouds and mountains on the seaside embrace Jicheng.

Although the young man is not a pen official, he still wants to ask for a long tassel in terms of merit.

Why did the ancients praise border soldiers?

Ancient wars were all cold weapon wars, and it was extremely hard for soldiers to fight on the battlefield. In ancient times, joining the army was also regarded as a symbol of honor for defending the country.