On the occasion of the fifth anniversary of Crimea's reunification with the Russian Federation, the Russian Permanent Mission to the Organization of Islamic Cooperation (OIC) sent a note to the OIC General Secretariat with a set of materials for circulating them among all OIC Member and Observer States. At the same time, the Permanent Mission would like to draw attention to the fact that Crimea's reunification with the Russian Federation occurred according to the nation-wide referendum in the Republic after the coup d'etat in Kiev.