Since April 2013, the Jeanne d'Arc group, composed of the Landing Helicopter Dock (LHD) Tonnerre, the Antisubmarine Frigate (ASF) Georges Leygues, the Light Surveillance Frigate (LSF) Nivôse, and the Off-Shore Patrol Vessel (OSV) Adroitare, have been engaged in the European operation against piracy christened Atalanta. The French ships and the four Swedish, German, Spanish and Dutch ships are deployed under the authority of European military staff aboard the Portuguese Guided Missile Frigate NRP Alvares Cabral.