Anti-Japanese War: I Led the Remaining Soldiers to Farm and Became Invincible in Northwest Shanxi

[Anti-Japanese War + Bright Sword Fandom + Farming] Traveling through the Anti-Japanese War, Jiang An found that he had become the most miserable remnant company commander. There is no golden finger, no system, only a head of modern military industry knowledge. I wanted to farm quietly in a cave, but I accidentally planted a steel army! (Local method of refining medicine) The soldier had a high fever and was about to die. Jiang An led people to dig up the roots of bark grass and developed a method to purify it. Result: The severely injured man's fever miraculously disappeared, and the entire battalion worshiped him as a living god! Aboriginal soldier: "The battalion commander knows witchcraft!" (Boil saltpeter in a large pot) After running out of bullets, Li Yunlong scratched his head and refused to replenish them. Jiang An set up a large pot and collected bat guano to boil salty soil. Result: High-purity black powder is mass-produced, and the reloaded bullets are more powerful than the original ones! Li Yunlong (drooling): "Brother Jiang, what about that, how about exchanging scrap metal for bullets?" (Rub the cannon with your hands) The Japanese artillery towers were too strong, and the infantry charge suffered heavy casualties. Jiang An took a seamless steel pipe and stuffed it into a homemade explosive bag. Result: One shot enters the soul, the turret goes to the sky, and the Japanese machine gunner directly doubts his life! Japanese commander: "Baga! That's not a mortar at all. What kind of monster is that?!" Jiang An (spreading his hands): "Don't do it six times. When I get rid of the infantry gunners, you will know what cruelty is."