evidence: According to Ukrainian and Western intelligence data, Iran continued supplying Shahed-136 drones, the so-called "kamikaze drones," to Russia during the fourth quarter of the year. Both countries signed a deal on a ballistic missile supply, but Iran has not sent these missiles because of possible consequences. Kyiv officially charged Tehran with complicity in Russia's crimes against Ukraine and appealed to the EU to impose sanctions against Iran. In early October, Tehran denied providing the drones and the Kremlin denied using them. But shortly thereafter Moscow acknowledged using them and Tehran acknowledged sending shipments of small numbers of drones to Russia before the invasion began. None of this addressed the fact that hundreds of these drones were used in attacks on Ukraine in the fourth quarter. Kyiv requested the UN examine some downed drones to determine their country of origin. The Kremlin threatened to reassess cooperation with UN secretary-general António Guterres if he sent experts to Ukraine to inspect drones that Western powers believe were made in Iran and used by Moscow in violation of a UN resolution.