During the campaigns of Francis Garnier in Tonkin in 1873 the French raised irregular units of Tonkinese militiamen, many of them Christians who felt little loyalty to the brutal regime of Tự Đức.
The establishment of regular regiments of tirailleurs tonkinois in 1884 was preceded by experiments with native auxiliaries in Tonkin by General Bouët and Admiral Courbet in the second half of 1883.
The French expeditionary column commanded by Admiral Amédée Courbet in the Sơn Tây Campaign included four companies of Annamese riflemen from Cochinchina, each attached to a marine infantry battalion.
Many of these Tonkinese auxiliaries were men who had fought with Vlavianos in the autumn battles, who managed to re-enlist in French service after the Yellow Flag battalion was disbanded.
General Charles-Théodore Millot, who succeeded Admiral Courbet as commander of the Tonkin expeditionary corps in February 1884, was a firm believer in the utility of native auxiliaries.
Millot believed that if native formations were given a sufficient number of French officers and NCOs, they would be far more effective in action and less prone to the indiscipline shown by the Yellow Flags.
In fact the Black Flags responded well to his kind treatment and for several months gave good service, taking part in a number of sweeps against Vietnamese insurgents and bandits.
Millot's unfortunate experiment was not repeated by his successor General Brière de l'Isle, and no further attempts were made by the French to integrate Black Flag soldiers into the Tonkinese rifle regiments.
[6] The 8th Company, 1st Tonkinese Rifle Regiment (Captain Dia, Lieutenant Goullet) formed part of the French column that captured Tuyen Quang on 2 June 1884.
[9] The 12th Company, 1st Tonkinese Rifle Regiment (Captain Bouchet, Lieutenants Delmotte and Bataille) was engaged at Bắc Lệ (23 and 24 June 1884) and at the Battle of Lam (6 October 1884) during the Kep Campaign.
[14] Lieutenant Fayn's platoon of Captain Dufoulon's 1st Company, 1st Tonkinese Rifle Regiment, 50 men strong, routed a force of 400 Chinese, Vietnamese and Muong bandits at Thai That near Sơn Tây on 18 April 1885.
The engagement took place four days after a ceasefire between the French and Chinese armies in Tonkin had come into effect in consequence of the conclusion of preliminaries of peace between France and China on 4 April.
The prowess displayed by the Tonkinese riflemen on this occasion was given wide publicity by the French military authorities, and commemorated by General Brière de l'Isle in an order of the day issued on 26 April.
[18] The four regiments of Tonkinese Rifles continued in existence between the two World Wars, seeing active service in Indochina, Syria (1920–21), Morocco (1925–26) and in the frontier clashes with Thailand (1940–41).
During the same period the tirailleur uniforms were modified to conform with the standard khaki drill of the French Colonial Infantry, and the distinctive indigenous features disappeared.