Answer 1: From the original asker of the question:
I doubt it. Look at what Syria is prepared to do to her own people let alone what she would do to Israel if they had.
Answer 2
If Iran attacks Israel, there is little doubt that the United States will enter the fray. Additionally, some countries in Western Europe, especially the United Kingdom will join the fight. An outwardly bellicose Iran would be untenable. However, just because these countries would intervene on an extant attack on Israel does not mean that they wish to join Israel on performing a pre-emptive strike on Iran. This is what the news media is covering. Israelis know that the Israeli air-force would not be able to effectively destroy Iran's nuclear capability in the same way that they destroyed Iraq's and Syria's nuclear capability because there are numerous Iranian facilities and most are deep underground. The American air-force is far larger and would deal a much more significant blow, which is why the Israeli leadership is trying to convince the American leadership to act.
As for Syria, the Syrian armed forces are a joke compared to Israel. Hezbollah has scored more significant successes against Israel than the Syrian Army. The reason that the Syrian civil war is dragging for so long is because the rebels have insufficient numbers, tactical experience, and military hardware (such as guns and tanks) to effectively oppose the Syrian government. Israel has all of those things, so Syria is not a worry for Israel. (The Syrian air-force is even more of a joke.) Egypt is the only Arab country with a decent army.
Because Iran is not trusted to be a sensible member of the UN, abstaining from attacks on other countries. Israel is particularly worried about being attacked from Iran.
Iran > Iraq > Israel.
Israel and Iran are two separate countries, with no overlap.
The United States is not obligated by any standing treaty between the United States and Israel to intercede in Israel's defense. To date, of the numerous wars that Israel has fought, the United States has only ever provided economic support or gifting weapons. No American Soldier has given his life in an Israeli War. If Iran declared war on Israel, the United States would probably act similarly and may itself declare war on Iran, but this will not be out of any written treaty, but purely based on American regional interests.
In present day Iran
The Kurdish Homeland.
Iran.
Both Iran and Israel have a history of hostility with various Arab nations.
-- Western Israel is bordered by Egypt and the Mediterranean Sea. -- No part of Iran borders any part of Israel.
Asia
November 11,2009--- Israel attacks nuclear facilities in Iran. Attack includes attempted destruction of military complex. Results disastrous for Israel. Major destruction and death in Israel. War widens as tactical nuclear weapons are used by Israel. United States refuses to come to the aid of Israel.
No