A ranar 30 ga Yuli 1883 Admiral Courbet, Janar Bouët da François-Jules Harmand, sabon kwamishinan faransanci na Tonkin, sun gudanar da majalisar yaki a Haiphong. Mutanen uku sun amince cewa Bouët ya kamata ya kaddamar da wani hari kan Sojojin Black Flag a matsayinsa a kusa da Phu Hoai a kan Kogin Day da wuri-wuri. Sun kuma lura cewa Kotun Huế tana taimakawa da kuma taimaka wa Sojojin Black Flag na Liu Yongfu, kuma Yarima Hoàng har yanzu yana cikin makamai a kan Faransanci a Nam Định. Saboda haka, sun yanke shawara, galibi a kan roƙon Huế, don bayar da shawarar ga gwamnatin Faransa ta kai hari kan sojojin Vietnam na Huế, sannan kuma wani tsari na Vietnamese ya bukaci Faransa ta amince da kariya ta Faransa a kan bakin teku ko Harkin.
Haiphong