As part of the 1979 contract with IAI, the Argentine Air Force had stipulated that the Daggers would be equipped with new avionics and HUD systems, enabling them to conform to the Kfir C.2 (and beyond in some subsystems) standard. The program, which was named Finger, was already underway in 1982 when the Falklands War broke out. Although the conflict was relatively brief, one consequence of the war was, as some of these systems were made by the British Marconi Electronic Systems, it became necessary to replace British-built systems after an arms embargo was imposed by the government of the United Kingdom. The corresponding work to replace such systems led to the planes being modified to the final "Finger IIIB" standard; this model primarily differed from the original Finger standard in the replacement of British-sourced equipment, often using French-built counterparts from Thomson-CSF.