勤王運動
The final nail in the coffin of the Cần Vương came about with the outbreak of the Sino-Japanese war in 1894. Until then, it was relatively easy for partisans, weapons and supplies to cross the Sino-Vietnamese border and support the resistance. With the outbreak of war, Chinese mandarins along the southern border were strictly instructed to avoid antagonizing the French and the border was sealed, along with the fate of the Cần Vương movement.