CGTN’s Yang Xinmeng discovered a forgotten valley in southwest China, Tuyunguan. Few people today know its history, but during World War Two, this quiet mountain pass was once the heart of China’s largest wartime medical network.

Her visit uncovers stories of international doctors and nurses who came from across the world to stand with China in its fight against fascism. Their courage shows that while wars may be won on the battlefield, peace is sustained by those who save lives in silence.