Siege of Khartoum population of Khartoum was about 34,000. Gordon's plight excited great concern in the British press, and even Queen Victoria intervened on his behalf. The government ordered him to return, but Gordon refused, saying he was honour-bound to defend the city. By July 1884, Gladstone reluctantly agreed to send an expedition to Khartoum. The expedition, led by Sir Garnet Wolseley, took several months to organise and only entered Sudan in January 1885, but by then the situation of the Egyptian garrison and civilians had become desperate, with food supplies running low, many inhabitants dying of hunger and the defenders' morale at
Khartoum main Nile ("see map, upper right") as it zigzags through northern Sudan into Egypt at Lake Nasser. Khartoum is relatively flat, at elevation , as the Nile flows northeast past Omdurman to Shendi, at elevation about away. Under Köppen's climate classification system, Khartoum features a hot arid climate, with only the summer months seeing noticeable precipitation. The city averages a little over of precipitation per year. Based on annual mean temperatures, the city is one of the hottest major cities in the world. Temperatures routinely exceed in mid-summer. Its average annual high temperature is , with six months of the