Garnier Expedition

The Garnier Expedition was a French expedition in Tonkin between November 1873 and January 1874. Lieutenant Francis Garnier, who had been sent by France on the demand of Vietnamese Imperial authorities to bring back Jean Dupuis, an unruly French trader who was causing trouble in Hanoi, instead decided to side with Dupuis and captured the city of Hanoi, the capital of the Tonkin region. Following the capture of the city, Garnier and his small force launched themselves in a lightning military campaign that resulted in the conquest of most of the Tonkin region within three weeks. Garnier was eventually killed in action while repulsing an attack on Hanoi on 21 December, but his men nonetheless remained in control of the region. However, the campaign had not been planned or even allowed by the French government and a treaty was signed in 1874, which gave back all the conquered cities to Vietnam in exchange for a very favourable trade agreement and the installation of a French resident in Hanoi, as well the official recognition of all French possessions in Cochinchina.