A Different War of Resistance: the World's Most Powerful Country

[No system + no heroine + hardcore resistance] Traveling through 1937, seventeen soldiers were defeated, all ammunition and food were exhausted, and the elite Japanese troops were chasing after them! Lin Jie, a military expert, has no system and no heroine. He started from scratch with advanced military blueprints. Collect defeated troops, build ordnance, and sweep away the Japanese invaders with hard core, protect the country with iron blood, and not give up an inch of territory!