The nuclear program of Israel is an open secret for the world at large. The security against the neighboring Arab countries was the primary objective behind the development of Israeli nuclear ambitions, which were further strengthened by establishing the strategic relations with major global nuclear states. The transactions through illicit nuclear network have made possible the foundation of Dimona Nuclear Reactor. Furthermore, Mordechai Vanunu, an escaped Israeli scientist, revealed the Israeli nuclear status, but still the Jewish authorities are advocating the 'Strategy of Deliberate Ambiguity' for their unannounced nuclear weapons. It's an established fact that Israel developed nuclear weapons secretly and has also acquired a sufficient delivery system via maintaining nuclear opacity over its nuclear facilities. In the contemporary scenario, Israel, a country which has sparked nuclear race in the Middle East, is continuously refusing to become the member of NPT and has adopted a strategy of preventive strike in order to eliminate the nuclear efforts of other regional countries.