The Anti-Japanese War: Starting from the September 18Th Incident

In the 21st century, the soldier king Li Dasheng died due to earthquake relief. He traveled to the beginning of the September 18th Anti-Japanese War. He awakened the system of protecting his family and country. As long as he kills the Japanese, he can drop a blind box treasure chest. The treasure chest cannot be opened, and the rewards continue to stack. Acquire the skill of firearms with perfect hits, and kill Japanese enemies like pinching persimmons. Obtained the skill of eighteen cuts with a big sword, and the little devil's heads fell to the ground one by one. Acquire modern firearms manufacturing skills and the skills to create high-performance explosives. Until one day, the system's blind box treasure chest was opened based on luck, and then the system disappeared. This made Li Dasheng worried. What should he do? We can only bite the bullet and combine modern military skills and knowledge to defeat the little devils. (The war unfolds from a small stage to a big one, killing enemies on the battlefield is hearty and interspersed with the life and friendship between the protagonist and his brothers.)