The Great War of later years was to show whether or not this confidence in his own abilities was misplaced. By the year 1884, his reputation as a builder of trenches and forts was firmly established, although official promotion had come slowly. When Admiral Courbet telegraphed to the Home Office from the Isle of Formosa for a reliable officer to place in charge of this work, Joffre was sent. He spent nearly a year there and it was a year of the hardest kind of work. He could get only indifferent help, so he worked early and late to make up the deficit. From there he was sent on similar work to the province of Tonkin, Indo-China. Here he practically rebuilt the town of Hanoi, clearing and guttering the streets, draining the neighboring marshes which had made the settlement a pest-hole, and building permanent roads. The town of Vietri was similarly cleaned up. For these important labors he received the first recognition in nearly ten years. He was given official thanks, and decorated with the cross of the Legion of Honor. A fellow officer who knew him at this time says: "Captain Joffre was a solidly-built Pyrenean, calm and clear-headed, with a firm walk and a hard blue eye. He seldom smiled and he spoke still more rarely. He never punished except in extreme cases, and then hard. Natives feared him for his silence, but loved him for his justice." This portrait of him about a quarter of a century before the Great War is easily recognizable in the commander of the later day. In 1891 he paralleled the career of General Foch somewhat by taking a professor's chair. He was appointed instructor in fortifications at the Military School at Fontainebleau, where he remained for two years. The work did not appeal to him particularly and he is spoken of there as a thorough teacher, but not popular. He had not mingled enough with others to get their point of view. A welcome change from this was a summons from headquarters to go to Timbuctoo, and help suppress a native rebellion. It was all the more welcome as here, for the first time, he was promised a chance to do some real fighting. Timbuctoo was then being overrun by the Tuaregs, a tribe of terrible brigands called "the veiled men" of Western Soudan. They had massacred the European settlers, and ended by killing two French officers, Colonel Bonnier and Lieutenant Boiteux, who had recently headed expeditions against them. It was a wild and treacherous land, and the relief expedition would scarcely have child's play of it.