The following are a few poems that may express the mother's feelings when she sends her son to join the army:
1. The wind blows and the frozen mud cracks by the seaside, and the dead tung leaves fall off and the branches break. The flute sounds but no one is seen, the red flag goes straight up to the snow of Tianshan Mountain. (Chen Yu in "On the Military March")
Explanation: The wind at the seaside cracked the frozen mud, and the dead tung leaves fell and broke off the branches. I heard the sound of the flute but saw no one, and the red flag went straight up the snow-capped mountains.
2. After hundreds of battles, the iron armor was shattered, and the south of the city was heavily surrounded. ("A Journey to the Army" by Li Bai of the Tang Dynasty)
Explanation: After hundreds of battles, the armor is in tatters, and the south of the city has been surrounded several times by enemy troops.
3. In vain, sorrow always comes in spring, and I go to a foreign country to be a soldier alone. ("Joining the Army" Xihe)
Explanation: Being sad alone always encounters spring, and goes to a foreign country to join the army alone.
These verses express mothers' love and concern for their sons, as well as their hope that their sons can contribute to the country.