The movement lacked a coherent national structure and consisted mainly of regional leaders who attacked French troops in their own provinces. The movement initially prospered as there were only a few French garrisons in Annam, but failed after the French recovered from the surprise of the insurgency and poured troops into Annam from bases in Tonkin and Cochinchina. The insurrection in Annam spread and flourished in 1886, reached its climax the following year and gradually faded out by 1889.[1]