You think the arabs think that Israel wants to take over all those countries you mention? Link please, because I've never heard that, it's kinda absurd.
The US attacked Irak because they supposedly had weapons of mass destruction, and since they'd already attacked Israel and were paying the families of suicide bombers in Israel something like $25,000, I'd say that that war could be seen as protecting Israel.
As for Afghanistan, the US originally went in there to get Al-Qaeda and Osama, the people responsible for 9/11, and in the video of Osama above, he clearly states that 9/11 is retaliation for what's going on in Palestine. So by taking out all those baddies, we're protecting Israel, who gave us 9/11 in the first place.
Now we're threatening Iran for Israel. Do you want me to explain that to you as well?
The US invasion of Iraq in no way protected Israel, since Iraq had not been a threat to Israel for many years. The first Gulf War was fought to liberate Kuwait and protect Saudi Arabia from Saddam because his aggressions threatened the Gulf oil supply, and the second Gulf War was for the purpose of ending the unsustainable policy of containment of Saddam's Iraq that required a large US military presence in Saudi Arabia and Kuwait. It was this large US military presence in Saudi Arabia, which hadn't existed before the first Gulf War, that motivated al Qaeda's attacks, including 911, on the US. Bin Laden's claim that 911 was related to the disputes between Israel and the Palestinian Arabs was an appeal to Arab anti semitism made only after his actions and rhetoric had failed to produce the kind of support among Arabs he had hoped for and is clearly contradicted by the fact that al Qaeda, regardless of its rhetoric, never demonstrated any interest in the Palestinian Arabs and still hasn't to this day. It has long been as required of Arab leaders to appeal to Arab anti semitism as it once was of politicians in America's segregated South to appeal to white racism.
Israel had nothing to gain from America's wars with Saddam's Iraq, however, as diplomatic cables exposed by Wikileaks have shown, Saudi Arabia, Bahrain, Jordan, UAE and Egypt, as well as Israel have all urged the US to stop Iran from acquiring nuclear weapons by any means necessary, including military. Since Iran is currently working on developing long range missile, Shahab 6 and Shahab 7, that would be able to deliver a nuclear warhead to any target in Western Europe or the Eastern US, the US and Europe have a shared common interest with Israel and the Arab states in stopping Iran's nuclear weapons and long range missile programs by any means necessary.