After Omdurman, Kitchener opened a special sealed letter from Salisbury that told him that Salisbury's real reason for ordering the conquest of the Sudan was to prevent France from moving into the Sudan, and that the talk of "avenging Gordon" had been just a pretext. Salisbury's letter ordered Kitchener to head south as soon as possible to evict Marchand before he got a chance to become well-established on the Nile. On 18 September 1898, Kitchener arrived at the French fort at Fashoda (present day Kodok, on the west bank of the Nile north of Malakal) and informed Marchand that he and his men had to leave the Sudan at once, a request Merchand refused, leading to a tense stand-off as French and British soldiers aimed their weapons at each other. During what became known as the Fashoda Incident, Britain and France almost went to war with each other. The Fashoda incident caused much jingoism and chauvinism on both sides of the English Channel; however, at Fashoda itself, despite the stand-off with the French, Kitchener established cordial relations with Marchand. They agreed that the tricolor would fly equally with the Union Jack and the Egyptian flag over the disputed fort at Fashoda. Kitchener was a Francophile who spoke fluent French, and despite his reputation for brusque rudeness was very diplomatic and tactful in his talks with Marchand; for example, congratulating him on his achievement in crossing the Sahara in an epic trek from Dakar to the Nile. In November 1898, the crisis ended when the French agreed to withdraw from the Sudan. Several factors persuaded the French to back down. These included British naval superiority; the prospect of an Anglo-French war leading to the British gobbling up the entire French colonial empire after the defeat of the French Navy; the pointed statement from the Russian Emperor Nicholas II that the Franco-Russian alliance applied only to Europe, and that Russia would not go to war against Britain for the sake of an obscure fort in the Sudan in which no Russian interests were involved; and the possibility that Germany might take advantage of an Anglo-French war to strike France.