Anti-Japanese War: Acting Regiment Leader, Build the Entire Regiment's Special Forces

Xu Yan traveled through the Anti-Japanese War era and forced Sakata to death at the beginning. Li Yunlong was beaten and Xu Yan took over as the leader of the new regiment. The reform started on the day he took office, including tactics, physical fitness, and basics... Three months later, things changed in northwest Shanxi, and a group of mysterious guys appeared out of nowhere. Kazuki Yamamoto: "Kusho, where did this team come from? All my special forces teams were wiped out by them." Shinozuka Yoshio: "Okamura-kun, there is no way to fight this battle in northwest Shanxi. As long as our team encounters that perverted group, there is no possibility of winning." Deputy Commander-in-Chief: "Damn it, who dares to disobey me and stir up trouble everywhere in northwest Shanxi?" Brigadier: "Boss, we can't find any information, but I estimate that this must have been done by his mother Li Yunlong again!" Lao Li: "Who did this? It's me again who did this." Xu Yan: "I'm sorry, Lao Li, just... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.