A few implications - Marginal REVOLUTION

Israel now had a policy known as the “Begin Doctrine,” which would endure long after Begin himself was gone from the political arena. It held that Israel would not countenance any of its mortal enemies seeking to develop or acquire a weapon of mass destruction.

There is as well the option of trying to forestall the use of nuclear weapons if efforts to prevent or dissuade a country from developing them ultimately fail. This would entail trying to establish deterrence, making it clear that any use of nuclear weapons would be met with a devastating response. The problem is that deterrence cannot be guarantee

Palestinian state must seek to maintain an absolute monopoly over military, paramilitary, guerrilla, and terrorist violence, as the Jewish state did in 1948 when it forcibly and permanently disarmed Etzel and Lechi. Even before it becomes a state, the Palestinian Authority must show that it is willing and able to disarm all terrorist groups,

Experience shows that when Israel did not respond firmly to Palestinian terrorism, more terrorism followed, and when Israel took appropriate military steps, the number and severity of terrorist attacks were reduced.

Would any reasonable nation faced with comparable threats of annihilation have acted differently?