Yan Ge's "The Order of Union" describes that the recruiter can't return to his hometown due to years of continuous war, which leads to the recruiter and his family missing each other, that is, he hopes that the war will end soon and he will return to his hometown to reunite with his family as soon as possible.
Yan song combination generally refers to Yan songs. Ge Yanxing is a poem by Gao Shi, a poet in the Tang Dynasty. This poem sums up the general frontier wars, mainly exposing the lords' arrogance, underestimating the enemy and not caring for the soldiers, which led to the failure of the war.