Kammala jumlar da ke gaba: Feng Guifen (1809<unk>1874) ya bayyana damuwarsa game da "karfafawa kai" na China a cikin jerin labaran da ya gabatar wa Zeng Guofan a 1861. Feng ya sami kwarewar yaƙi da ke jagorantar ƙungiyar masu sa kai a kamfen na gwamnatin Qing a kan
'Yan tawayen Taiping. A shekara ta 1860 ya koma Shanghai, inda fasahar sojan Yammacin duniya ta burge shi sosai.