Lu Hanshan transmigrates into the chaotic warlord-ridden Republic of China, becoming the commander of a ragtag border-defense battalion, unwanted by his grandmother and unloved by his uncle.
His superiors skim off his rations and pay, allied troops look on coldly, and nearby warlords and foreign powers with heavy artillery eye him hungrily, ready to use him as cannon fodder and wipe him out at any moment. Facing a hellish start, Lu Hanshan, who spent his whole life in modern logistics, remains unruffled: Short on guns and artillery? Then dig deep and stockpile grain!
When warlords from every direction charge toward this juicy target with heavy artillery divisions, they are left completely dumbfounded: oblique and reverse-slope trenches, domes of homemade volcanic-ash cement, and interlocking pillboxes arranged in a triangular pattern! The warlords wail in despair: "What kind of ragtag border-defense battalion is this? This damn thing is the Maginot Line combined with Stalingrad!"
