 Initially, this was the context for the modernization of the Romanian MiG-21s with Elbit Systems, and because it was easier to maintain these fighter jets.In 1995–2002, a total of 111 MiG-21s were modernized, of which 71 were M and MF/MF-75 variants modernized under the LanceR A designation (for ground attack), 14 were UM variant as LanceR B designation (trainer), and another 26 MF/MF-75 variant were modernized under LanceR C designation (air superiority).Today, only 36 LanceRs are operational for the RoAF.