The United States and its European allies—Britain, France, and Germany—have announced new sanctions on Iran for supplying short-range ballistic missiles to Russia, which are expected to be used against Ukraine within weeks. These sanctions target Iran's aviation sector, including Iran Air, and individuals and entities involved in the missile transfers. US Secretary of State Antony Blinken emphasized that this move represents a significant escalation in the conflict and a direct threat to European security. Iran has denied the accusations, labeling them as Western propaganda, and vowed to respond with appropriate measures. The sanctions come amid increasing cooperation between Iran and Russia, who are nearing the signing of a new bilateral treaty.