The
Bombardment Group Bretagne () was created on January 1, 1942, at
Fort-Lamy, in
Tchad, from the permanent detachment of Aerial Forces of Tchad (). Becoming the bombardment group -
Groupe de Bombardement Moyen II/20 Bretagne, the latter took part to various World War II campaigns including the Fezzan campaign,
Tunisia,
Italy, the
Liberation of Alsace and bombardments of Germany. In 1946, the unit became a Transport Group (), the group was numbered I/63
Bretagne in July 1947. The unit operated in
Africa, until dissolution in 1963. The bombardment squadron -
Escadron de 2/91, created previously on December 1, 1964, at the corps of the
91e Escadre de Bombardement (), retook the traditions of
Bretagne. On April 1, 1965, the first
Mirage IVA arrived to the squadron. After a drop on the firing field of Colomb-Béchar, the squadron was operational in July and integrated the ensemble plan of the nuclear
force de dissuasion until dissolution, on July 31, 1996.
Mirage 2000 and 1
U.S. VFA-113 F/A-18 during
Operation Southern Watch (April 23, 1994). The first unit of the French Air Force to be equipped with means of air supply was the
90e Escadre in August 1963. Initially equipped with 12 C-135FR, the 90e Escadre de Ravitaillement en Vol (ERV) and the other air supply units were spread at the corps of 3 Mixed
Escadres Bombardment Mirage IV/C-135FR in 1965. In 1976, the Air Supply Escadrons/Squadrons () were united at the corps of the 93e Escadre de Ravitaillement en Vol (, ) until 1993. On August 1, 1996, the
Escadrons de Ravitaillement en Vol (ERV) 1/93
Aunis and 3/93
Landes were dissolved. The air supply means () of these two squadrons were regrouped at the corps of a new
ERV 93 Bretagne created the day. The unit became the only composition of the French Air Force to put into effect air supply means with C-135FR. The 2 Escadrilles of
Landes (SPA Bi 54 and SAL 22) were preserved at the corps of ERV 93, as well as the traditional escadrille
Rennes and
Nantes. On September 1, 2004, the ERV lost the designation of Escadron/Squadron to become a Group and was designated Groupe de Ravitaillement en Vol 00.093 « Bretagne ». Since August 2009, the «Bretagne» has retaken the designation of Groupe de Ravitaillement en Vol 2/91 In 2012, the escadrilles
Rennes,
Nantes and SPA Bi were dissolved and replaced with three other units. On August 27, 2014, the
31e Escadre Aérienne de Ravitaillement et de Transport Stratégiques was created on an Aerial Base. The latter regrouped GRV 2/91
Bretagne and the Specialized Technical Support Squadron () (ESTS) 15/93. On October 4, 2019, the GRV 2/91 is renamed
Sologne (disbanded on June 30, 2025) and
Bretagne became Escadron de Ravitaillement en Vol et de Transport Stratégiques ERVTS 01.031. ==Missions==