Resistance: I Have a French-Equipped Division

Li Mingyuan travels to a parallel world just before the War of Resistance Against Japan, becoming a major general division commander of the Yunnan Army with a French-equipped division provided by the system. Then the war breaks out, and he immediately leads his troops to the Battle of Shanghai. Good news—he arrives in time. Bad news—it's the late stage. He retreats with reluctance and later participates in various famous battles of the war. (Does not alter history much, not an invincible or mass-army story.)