The SEPECAT Jaguar was the world's first military aircraft developed by two countries. Both France and the UK were in need of an advanced jet trainer. Britain needed a supersonic, and the French wanted a subsonic trainer that was cheap to build.

The RAF received a total of 203 Jaguars, 165 GR1 (Jaguar S) single seaters, and 38 two seat's T.2's (Jaguar B). The GR1's have been upgraded to the current GR1.A with Adour Mk 104s, they feature an advanced nav/attack system and laser rangefinder in a chisel shaped nose. Currently Britain is upgrading it's Jaguars to GR.3 (and T.4) standard with TIALD pod and ASRAAM compatibility, a helmet mounted sight, improved ECM, a towed decoy system, new LCD screen in the cockpit and up to 25% more powerful Adour Mk 106 turbofans.

France received 160 single seaters (Jaguar As) and 40 trainers (Jaguar Es). French Jaguars had a less advanced nav/attack system and twin DEFA cannons. Half were delivered with an under nose laser rangefinder and 30 can carry the ATLIS laser designator pod for the AS.30L laser guided missile.

The export Jaguar has been sold to 4 other countries, it was sold and built by BAe and based on the GR.1. India has bought the most export Jaguars, and is still building them under license. Some have an Agave radar and can fire Sea Eagle anti ship missiles (to be upgraded with the Elta EL/M-2032 radar). India's latest batch of 17 two seaters (delivered from 2001) have a DARIN nav/attack system and will be used for night attack.