The desert is windy and dusty, the sun is dim, and the red flag is half-rolled out of the camp gate.

In the desert of northern Saibei, strong winds were blowing, dust was flying, and the sky was dark. The military situation on the front line was very urgent, and they quickly attacked after receiving the battle report. The desert is windy and dusty, the sun is dim, and the red flag is half-rolled out of the camp gate. This poem comes from "Military March: Desert Wind and Dust" by Wang Changling of the Tang Dynasty. This poem means that in the desert of northern Saibei, strong winds are blowing, dust is flying, the sky is dark, and the military situation on the frontline is very urgent. Attacking quickly after receiving the battle report describes the joy of the border guards who rushed to the front line when they heard the news that the front troops had won the first battle, and praised their heroic spirit of fighting the enemy bravely and serving the country selflessly.