France helped Israel to build in the early 50s the Dimona nuclear reactor, then France dropped the support for some reasons thata re not totaly known.
Israel finished to build the reactor by itself in the middle of the 50s.
The major planes supplyer of the Israeli Air Force untill the Six Days War of 1967, was France, and the first advanced jet fighters of the IAF were the French Mirrages.
After the Six Days War, France dropped its support over Israel and started to love the arabs and never loocked back...Why? Only god knows.
Also since 1967 Israel had to develop its own tanks, and so the idea of the Merkava tank was developed.
In 2002 IDF introduced the new Merkava-4 tank, that by many military experts considered to be the most advanced in the world, especially in urban fighting.
So maybe it was even good that France stopped supporting Israel :)