War of Resistance: Max-Level Insight, From Foot Soldier to General

Zhou Chuan transmigrates to the era of the war against Japan and gains max-level comprehension. When he happens to come across a recruitment drive, he signs up without hesitation and joins the army as a new recruit! [You watch the captain handle a rifle and suddenly understand. You become a crack shot who never misses.] [You study gunpowder and suddenly understand. You develop smokeless powder!] [You watch the people grow crops and suddenly understand. You develop high-yield wheat, rice, and potatoes.] [You study medicine and suddenly understand. You develop penicillin.] [You...] With his incredible comprehension, Zhou Chuan can not only lead the army into battle and strike fear into the enemy, but also help the Great Xia nation develop at a staggering pace and rise to the top of the world!