section_path: International days of mourning
section_name: International days of mourning
paragraph_text: International days of mourning
  
  A similar but rarely-used concept exists at the European Union -level and Arab League -level and are called a European Day of Mourning and Arab League Day of Mourning. The European Commission first introduced the concept on 12 September 2001, when a day of mourning was declared across EU member states for the victims of the September 11 terrorist attacks in the United States. A second and third day of mourning was held in April 2010 for the victims of Smolensk air disaster in Russia and in November 2015 for the victims of the Paris attacks. Arab League has declared days of mourning for four times until October 2023. Besides, Other organizations such as African Union, Union of South American Nations etc also announced day of international mourning for several times.