Back to 1937 with a Pocket Dimension

[Transmigration + System Space + Feel-Good Power Fantasy] Codenamed Zhulong, I was once the most powerful strategic agent of the modern age. One day, I woke up as a dying rookie soldier in 1937. A severe injury forcibly activated the nanoscopic space inside my body. Food, weapons, medical pods... This mobile logistics base could sustain an entire war. But I know that saving one person is not as worthwhile as saving a nation. A few crates of penicillin are merely my gift to this era. The regimental commander sees me as his strongest trump card, the brigade commander suspects I have international backing, and the Japanese military's Special Higher Police have listed me as a “Ghost Target.” None of them knows that I've made northwest Shanxi my chessboard and am playing against the entire era. Where will I move next...?