The International Council on Archives (ICA) has developed a number of standards on archival description including the General International Standard Archival Description ISAD(G). ISAD(G) is meant to be used in conjunction with national standards or as a basis for nations to build their own standards. In the United States, ISAD(G) is implemented through , popularly known as "DACS". In Canada, ISAD(G) is implemented through the Council of Archives as the Rules for Archival Description, also known as "RAD". ISO is currently working on standards. The cultural property stored in archives is threatened by natural disasters, wars or other emergencies in many countries. International partners for archives are UNESCO and Blue Shield International in accordance with the Hague Convention for the Protection of Cultural Property from 1954 and its 2nd Protocol from 1999. From a national and international perspective, there are many collaborations between archives and local Blue Shield organizations to ensure the sustainable existence of cultural property storage facilities. In addition to working with the United Nations peacekeeping in the event of war, the protection of the archives requires the creation of "no strike lists", the linking of civil and military structures and the training of local personnel.