Prior to his execution, Song general Yue Fei detailed his military tactics and experience against the Jin forces in writing during captivity, titled Vital Information Against the Jins (), in hopes that future generations will continue his mission to restore China with his text.
Prior to his execution, Song general Yue Fei documented his military strategies and experiences against the Jin forces in writing during captivity, titled "Vital Information Against the Jins," with the intention that future generations would continue his mission to restore China with his text.