Data on casualties were not collected centrally before the formation of the Joint Casualty and Compassionate Centre in April 2005 because casualty reporting and tracking was the responsibility of each Service individually. Historic data on casualties have now been compiled for major and ongoing operations in Afghanistan, the Balkans and Iraq and other theatres brigaded together, including Sierra Leone. The Defence Analytical Services Agency is currently working to reconcile these data. When this detailed work is complete it will be placed in the public domain.