International Red Cross and Red Crescent Movement on their respective human, technical, financial, and organizational resources, many national societies take on additional humanitarian tasks within their home countries such as blood donation services or acting as civilian Emergency Medical Service (EMS) providers. The ICRC and the International Federation cooperate with the national societies in their international missions, especially with human, material, and financial resources and organizing on-site logistics. The Red Cross emblem was officially approved in Geneva in 1863. The Red Cross flag is not to be confused with the Saint George's Cross which is on the flag of England, Barcelona, Georgia, Freiburg im Breisgau, and several
International Committee of the Red Cross bringing the total staff under the authority of the ICRC to roughly 15,000. Delegations also often work closely with the National Red Cross Societies of the countries where they are based, and thus can call on the volunteers of the National Red Cross to assist in some of the ICRC's operations. The organizational structure of the ICRC is not well understood by outsiders. This is partly because of organizational secrecy, but also because the structure itself has been prone to frequent change. The Assembly and Presidency are two long-standing institutions, but the Assembly Council and Directorate were created only in