System Traveler 1937: Aid Nation, Steel Force Conquers All

An incredible cross-era barter breaks the boundary of time and space, rewriting the doomed tragic track of turbulent modern history. One small box of lifesaving penicillin, the miracle drug that can curb fatal bacterial infections and save countless dying wounded soldiers, is fairly traded for top-secret full-set lithography machine blueprints—the core industrial drawing that dominates high-end chip manufacturing and top national heavy industry. One full cargo truck of thick, cold-proof winter coats, warm supplies that shield frontline soldiers from freezing frostbite on harsh northern battlefields, is exchanged for intact sixth-generation stealth fighter jet engines: the cutting-edge aerospace power core that surpasses all contemporary aerial military technology by decades. Time rips open silently across the river of history. A complete modern mechanized army slips through the time crack, carrying a full arsenal of cutting-edge black-tech weaponry forged by modern industrial civilization. Advanced nuclear-powered aircraft carriers cruise the coastal territorial waters; supersonic stealth fighter jets roar across the gray sky; heavy main battle tanks crush barren battlefield land; precision missile systems lock all enemy firepower points in seconds. These well-equipped modern troops witness the crumbling frontier, falling city defenses and desperate helpless civilians in that darkest year. They watch the incoming brutal invasion and the looming catastrophic siege of the ancient capital. History was once fixed in cruel despair: the ancient city of Nanjing fell, and countless innocent people suffered unspeakable disaster. But this time, fate rewrites the ending. No more powerless retreats, no more futile sacrifices, no more unforgettable national humiliation. With modern firepower, black-tech armaments and unbreakable military will, this time, this cross-time army stands firm on the Yangtze River defense line. They raise heavy artillery, lock enemy formations, and swear an unbreakable oath. They will hold the city gate with flesh and steel, block all invading troops at all costs—This time, we defend Nanjing, and guard every inch of our motherland’s land.