France Submarine Capabilities
The French submarine fleet consists of nuclear-propelled attack (SSNs) and ballistic missile submarines (SSBNs). France decommissioned its last Agosta-class diesel-electric boat in 1999 without plans to replace the class with modernized diesel-electric vessels. This is despite France's pioneering role in the development of air independent propulsion (AIP) technology.
The French Navy's area of operation includes the North Atlantic, the Mediterranean Sea, and the Indian Ocean. France also maintains a presence near the economic zones of its numerous overseas territories and former colonies, such as French Polynesia and New Caledonia in the South Pacific, the West Indies and French Guyana in the Caribbean Sea, Reunion Island and Mayotte in the South Indian Ocean, and Djibouti at the mouth of the Red Sea.
Submarine Tables for France
France currently operates four Le Triomphant-class strategic missile submarines (SSBNs) based at Ile Longue, Brest. Since 1991, all six units from France's former fleet of Le Redoutable-class SSBNs have been progressively decommissioned, with the final vessel, L'Inflexible, completing its last deployment in 2007.  While plans originally called for the procurement of six Le Triomphant-class vessels to replace these older units, in 1991 this number was decreased to four. The final vessel of this project, Le Terrible, entered service in 2010 and is equipped with 16 new M-51 submarine-launched ballistic missiles (SLBMs) carrying four warheads each. The previous three Le Triomphant-class submarines are currently equipped with M-45 SLBMs, each carrying six TN-75 nuclear warheads, but will be progressively adapted to carry the M-51 by 2017-2018. Since France decided to dismantle its land-based ICBMs at Plateau d'Albion in 1996, its SSBN force is the nucleus of the country's strategic deterrent, and maintains a continuous at-sea presence.
France also has six nuclear-powered Rubis/Améthyste-class attack submarines (SSNs) currently on active duty, based at Toulon. However, the class is to be gradually decommissioned and replaced with the newly developed Barracuda-class attack submarines, the first of which, Suffren, was ordered in December 2006 and is due to enter service in 2017.  The new class will feature improved communication capabilities and, more importantly, an increased force-projection capability based on cruise missiles. France and Britain have jointly developed the Storm Shadow/Scalp EG cruise missile, which can fulfill this force projection requirement due to its high accuracy and effectiveness against hardened targets. The attack boats' main task is the protection of France's SSBN force and carrier group via anti-submarine and anti-surface warfare. In addition to traditional sea control and sea denial operations, its attack submarines are tasked with special forces deployment, surveillance and intelligence gathering, and missions against piracy, narcotics, and human trafficking.
 Interview of Jean-Charles Lefebvre, Chief of Naval Staff, by Klaus Jacobsen, "The French navy in a phase of transition," Naval Forces, 1998, Vol. 19, No. 5, pp. 37-41.
 "Maritime forces' contribution to the major strategic functions," French Ministry of Defense, www.defense.gouv.fr.
 "France Submarine Forces," Jane's Underwater Warfare Systems, 11 November 2009, www.janes.com.
 "Le Terrible Livré à la Marine [Le Terrible Delivered to the Navy]," Ministry of Defense, 4 October 2010, www.defense.gouv.fr; "Sous-marin Nucléaire Lanceurs d'Engins Le Terrible [ Le Terrible Nuclear Ballistic Missile Submarine]," Ministry of Defense, updated 22 August 2011, www.defense.gouv.fr.
 "Adaptation au M51 des SNLE [Adaptation for M51 of SSBN]," Ministry of Defense, updated 3 December 2010, www.defense.gouv.fr.
 "France: Nuclear weapons," Global Security Website, www.globalsecurity.org; "Visite virtuelle sous-marin SNLE - Presentation," French Navy, www.defense.gouv.fr.
 "Le Sous-marin d'Attaque Futur Barracuda [The Barracuda Future Attack Submarine]," Ministry of Defense, 9 June 2011, www.defense.gouv.fr.
 Interview with Jean-Louis Battet, Chief of Staff, by Wolfgang Legien, "French Navy - ready for the 21st century," Naval Forces, 2002, Vol. 23, No. 5, pp. 8-13; in ProQuest Information and Learning Company, http://proquest.umi.com.
 "Storm Shadow/Scalp EG/Conventionally armed standoff missile (CASOM)," Federation of American Scientists, www.fas.org.
 "France Submarine Forces," Jane's Underwater Warfare Systems, 11 November 2009, www.janes.com; "Sous-marin nucléaire d'attaque type Rubis," French Defense Ministry, www.defense.gouv.fr; "Maritime forces' contribution to the major strategic functions," French Ministry of Defense, www.defense.gouv.fr.
This material is produced independently for NTI by the James Martin Center for Nonproliferation Studies at the Monterey Institute of International Studies and does not necessarily reflect the opinions of and has not been independently verified by NTI or its directors, officers, employees, or agents.
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the Nuclear Threat
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Global Security Newswire
March 10, 2014
Oct. 31, 2013
In the last half-decade, a number of items have been stolen from British atomic-powered submarines, as well as from air force installations and army bases in Scotland, the Herald Scotland reported on Thursday. The newspaper cited documents obtained through open-record laws.