In November Phillips made a formal request to his superiors in England for permission to invade Benin City and in late December 1896, without waiting for a reply or approval from London, Phillips embarked on a military expedition with two Niger Coast Protectorate Force officers, a medical officer, two trading agents, 250 African soldiers masquerading in part as porters and in part as a drum and pipe band. To disguise their intent, the force hid its weapons in the baggage carried by the ‘porters’. His request to London was to depose the king of Benin City, replace him with a Native Council and pay for the invasion with the ‘ivory’ he hoped to find in the king’s palace. In the meantime he sent a message forward to the Oba, Benin’s king, that his present mission was to discuss trade and peace and demanding admission to the territory in defiance of Benin law explicitly forbidding his entry. Unfortunately for Phillips, some Itsekiri trading chiefs sent a message to the Benin king that ‘the white man is bringing war’. On receiving the news the Benin king quickly summoned the city’s high-ranking nobles for an emergency meeting and during the discussions the Iyase, the commander in chief of the Benin Army argued that the British were planning a surprise attack and must be defeated. The Benin king however argued that the British should be allowed to enter the city so that it can be ascertained whether or not the visit was a friendly one. The Iyase ignored the king’s views, and ordered the formation of a strike force that was commanded by the Ologbosere, a senior army commander, which was sent to Ughoton to destroy the invaders.
On 4 January 1897, the Benin strike force composed mainly of border guards and servants of some chiefs caught Phillips’ column totally unprepared at Ugbine village near Ughoton. Since Phillips was not expecting any opposition and was unaware that his operation was being perceived with alarm in Benin, the contingent’s only weapons, consisting of the officers’ pistols, were locked up in the head packs of the African porters. Only two British officers survived the annihilation of Phillips’ expedition, which became known as the ‘Benin Massacre’.