What is the creative background of Wen Guanjun's conquest of Henan and Hebei?

The background of the poem "Wen Guanjun took over Henan and Hebei" is:

This poem was written in the spring of the first year of Guangde (763). At that time, Du Fu was in Zizhou. When he heard that Shi Chaoyi, the last leader of the rebels, had hanged himself, his general Li Huaixian beheaded him as a sacrifice. Henan and Hebei were all recovered. As a result, the Anshi Rebellion, which had lasted for eight years, was finally put down. Du Fu was overjoyed. Write this "first quick poem in my life".

Poetry Appreciation of "Hearing the Official Army Retaken Henan and Hebei"

This poem describes the joy and excitement of the poet's family after hearing the news that the official army had recovered Henan and Hebei. The first line of the poem describes the reason for ecstasy, and the following lines describe the state of ecstasy. The first three sentences describe the current situation, and the last four sentences describe what is in the heart.

The time ranges from "Suddenly Chuan" and "First Hearing" to "Immediately Followed" and "Bian Xia"; the space goes from outside the sword to "Baxia" and "Wuxia", and then to "Xiangyang" and "Luoyang". ”; the movements range from “Looking”, “Manjuan”, “Where is the sorrow”, “Crazy with joy”, to “I must drink too much” and “Return home”, which expresses his actions and emotions of singing and crying in a hurry, which is very vivid. Touching.