The timing for when Israel may or may not have built its own nuclear weapon comes from their big bust up with France in the 1960's. Most likely period would have been between 1963 and 1966.

With regard to Iran's nuclear weapons programme, because their secret uranium enrichment facilities were uncovered, they have had to, rather embarrassingly, rejig their entire set up. My contention has always been that the secret nuclear weapons programmes of Iran, Libya and Syria were geared to produce small "tactical" nuclear weapons and that these weapons were to be smuggled into either Israel, the West Bank or Gaza and detonated. The greatest damage would be done if they targeted Tel Aviv and Haifa, however "politically" they could inflict a great deal of damage on Israel were they to detonate their weapons in the West Bank or Gaza. The Palestinians?? No Arab State has ever given a flying f**k about the Arabs of Palestine, so why should Persian Iran?? The bombs dropped on Hiroshima and Nagasaki did not end the "lives" of those cities, the tactical nukes smuggled in and used against Israel would "wipe Israel from the map" and "eradicate the stain from Muslim lands" leaving those lands free to be reclaimed.

"Where is the credible and verifiable proof that anyone in this dispute used "the threat of nuclear weapons"? "

I am not the one introducing "poll" results to support the contention that Israel would be first most likely to use nuclear weapons am I? In actual fact on the 11th March 1965 they gave the US a solemn promise that - "The Government of Israel has reaffirmed that Israel will not be the first to introduce nuclear weapons into the Arab-Israel area." (Source - "Office of the Historian - Historical Documents - Foreign Relations of the United States, 1964–1968, Volume XVIII, Arab-Israeli Dispute, 1964–67 - Document 185". History.state.gov.)

"Iran is no military match for Israel alone or with the support of others. So, where is the threat?"

The threat to Israel emanating from Iran?? Hamas in Gaza and Hezbollah in South Lebanon ans Syria.