Ecuadorian Air Force: The only country to operate all three new engine variants of the Mirage III/V family.
Mirage 50: Deep modernization package by french manufacturer Dassault, which included swapping the old Atar 9C for the more powerful Atar 9K-50.
IAI Kfir: Improved version of the IAI Nesher, an unlicensed Israeli copy of the Mirage V, swapping the french engine for an American J79 turbojet.
Atlas Cheetah: Unlicensed South African copy of the Mirage V, made with help of Israel and taking advantage of the lessons from the Nesher and Kfir programs, swapping the original engine for the same one found in the Mirage 50.
