International Red Cross and Red Crescent Movement is established to do help at emergency including natural disaster by Geneva Conventions , and Article 11 of the Convention on the Rights of Persons with Disabilities also difines such help by international law both humanitarian and human rights . International law , for example Geneva Conventions defines International Red Cross and Red Crescent Movement the Convention on the Rights of Persons with Disabilities , requires that `` States shall take , in accordance with their obligations under international law , including international humanitarian law and international human rights law , all necessary measures to ensure the protection and safety of persons with disabilities in situations of risk , including the occurrence of natural disaster . ''