Direct proof of use
The Aquitaine class appears in the 2023 Red Sea Crisis through French Navy and Ministry of the Armed Forces reporting on named FREMM frigates in Red Sea and Gulf of Aden operations. The ministry reported that the FREMM Languedoc had patrolled the Gulf of Aden and southern Red Sea from December 8, 2023, for maritime security and freedom of navigation, and that on December 9 it shot down two drones from Yemen while patrolling in the Red Sea.
The same official patrol account says Languedoc intercepted and destroyed a drone threatening the Norwegian tanker Strinda on December 11, then moved to protect the damaged tanker and resumed its patrol protecting maritime routes. A later French Navy case-study article describes Languedoc as targeted by hostile aerial drones in December and says the frigate replied by downing two craft from northern Yemen.
Sources: French Navy Languedoc Patrol, French Navy Languedoc Red Sea Case Study
Timeline
Languedoc entered the Red Sea patrol on December 8, 2023, before the EU launched Operation Aspides. Its first documented crisis engagements came the next day, when the French official patrol account says it destroyed two hostile drones from Yemen. On December 11, the ship was again credited with a drone intercept during the attack on Strinda.
The Council of the European Union launched EUNAVFOR Aspides on February 19, 2024, as a defensive maritime-security operation to restore and safeguard freedom of navigation in the Red Sea and Gulf. Cols Bleus reported that the French Navy joined Aspides from the start with the deployment of the FREMM DA Alsace and then its sister ship Lorraine in the Red Sea and Gulf of Aden.
Sources: French Navy Languedoc Patrol, Council Launches EUNAVFOR Aspides, Cols Bleus Alsace and Lorraine Decorated
Narrative
The documented role of the Aquitaine class in this conflict was shipborne air defense and force protection for merchant shipping and naval operations. Languedoc's December actions were framed by the French ministry as support to maritime security and freedom of navigation in a waterway used by heavy commercial traffic. The December 11 Strinda episode also shows the frigate moving from an intercept to protection of a damaged civilian tanker.
The later Aspides deployment centered on the FREMM DA air-defense variant. Cols Bleus reported that Alsace and Lorraine accumulated nearly five months of presence in the Red Sea, with Alsace credited with shooting down four suicide drones, including one by its embarked helicopter, and several ballistic missiles; Lorraine was credited with intercepting one drone. The article attributes those actions to protection of maritime commerce in the Red Sea and Gulf of Aden under the EU operation.
Public official sources used here identify the ships, their Red Sea or Gulf of Aden theater, the defensive mission, and the drones or missiles credited to the ships. They do not identify every interceptor munition fired by type in each engagement, so this page treats the Aquitaine-class frigate as the documented weapon system and leaves munition-level claims to separately sourced missile records.
Sources: French Navy Languedoc Patrol, French Navy Languedoc Red Sea Case Study, Cols Bleus Alsace and Lorraine Decorated, EEAS EUNAVFOR Aspides