the blood bank at cambrai

• to prepare for the Battle of Cambrai in 1917, Oswald Robertson stored 22 units of blood in glass bottles, calling it the first 'blood depot'.
• 20 Canadians were treated and 11 survived, despite being so badly in shock 
• This was the first time blood was used to treat soldiers in shock, and proved the potential.
• However, blood banks at CCS's were not able to make a huge difference for those urgently needing blood on the front lines