During lunch, Shen Pu and Zhu Huasheng shared the observations they had made during their time in the Domestic Fleet's reorganization.
The conversation started by discussing "bombing," which began with Li Yunxiang siding with the Navy.
After the last great war ended, someone using the pseudonym "Du Hei" published a series of articles related to aerial combat which eventually were compiled into a book titled "Air Supremacy." It later turned out there was no such person as Du Hei, and the articles were not written by one individual but by a group of senior officers from the Land Air Force, represented by Li Yunxiang, who had distinguished themselves during the war.
Their act was aimed at establishing the Air Force as an independent branch, emulating the Western Powers of that time.
Whether it was publishing articles in newspapers or compiling them into a book, all efforts were part of a campaign to establish an independent Air Force.