Answer : 1. "Protection of commercial ships from attacks by Iran-backed Houthi rebels."
Explanation :

Recently the European Union launched Mission Espides to protect commercial ships in the Red Sea from possible attacks by Iran-backed Houthi rebels. This EU naval mission involves deploying warships and airborne early warning systems in the Red Sea, the Gulf of Aden and surrounding waters. Participating countries include France, Germany, Italy and Belgium. The Aspides ships, operating under strict rules of engagement, are stationed in Larissa, Greece, and are authorized to fire only in response to Houthi attacks. The mission, initially planned for one year, is subject to renewal.