The Iran-backed Houthi militia, which controls large parts of Yemen, has attacked numerous commercial ships in the Red Sea since mid-November 2023 ‘in solidarity with the Palestinians’. This poses a significant threat to the global economy, and has led to an escalation of tensions in the Middle East. The United States has launched an international operation in the Red Sea to protect commercial vessels and keep this vital shipping route open, and the EU granted preliminary support to its own mission on 16 January 2024.