Joining the army is a poem by Yang Jiong, a poet in the Tang Dynasty. This poem borrows the title "Joining the Army" from the old Yuefu and describes the whole process of a scholar joining the army and fighting. Being able to concentrate such rich content in a limited space shows the poet's artistic skill. First of all, the poet grasped the most representative fragment in the whole process and gave a general description of the image. As for how the scholar joined the army, how to bid farewell to his parents, wives and concubines, and how to March all the way, the poet did not care.
Secondly, the poem adopts the jumping structure, jumping from one typical scene to another and developing by leaps and bounds. For example, just after the third sentence was written, the fourth sentence surrounded the enemy and then showed the scene of fierce fighting. But this kind of leap is very natural, and there is rich imagination space between each span. At the same time, this leaping structure makes poetry have a lively rhythm, such as turbulence on a cliff, giving people an indomitable momentum, effectively highlighting the strong patriotic passion of literati and the spiritual outlook of Tang Junbing.