During the Boer war, 22,000 troops were treated for wounds inflicted during battle. The surgical facilities provided by the British Army were vastly more effective than in previous campaigns. The Medical Department of the army mobilised 151 staff and regimental units. Twenty eight field ambulances, five stationary hospitals and 16 general hospitals were established to deal with casualties. Numerous voluntary organizations set up additional hospitals, medical units and first aid posts. Around one thousand Indians from Natal were shipped to South Africa to help in the recovery effort by transporting the wounded off the battlefields. Even Mahatma Gandhi, who was practising as a lawyer at the time in Durban, was a volunteer, helping recovery efforts in the Battles of Colenso and Spionkop. A second unit was established by Johannesburg and Cape Town Jews and aided both armies.