He was a strong supporter of the war in Iraq. I think more than just doing his job.

A lot of people supported the war without being Neocons, including me. The large majority of Republicans supported the war, and even most mainstream Democrats.

Saddam was an enemy of Israel who was handcuffed and could do squat. It's a bit of a joke.

Saddam was making progress in getting out from under sanctions, and he would have eventually broken free of them entirely. His goal was to make himself a strongman leader of the Arabs, which meant picking fights with Israel.

Afterwards, Iraq became the ally of Iran, another nominal foe of Israel.

Iraq is not an ally of Iran. It is a battleground where Iran and others try to manipulate and have influence. If it was iran's ally, we wouldn't still have US troops and bases there.

Regardless, to think that America would attack a country for Israel suggests that you do not understand politics. Countries don't do stuff out of altruism. You should know that.

Jews have a history of manipulating American politics to their own advantage. They don't control the US, but they are able to push it somewhat here and there.

Why on earth would Dick Cheney care about Israeli interests, except insofar as it affects Dick Cheney's interests?

He was duped by the Neocons and followed them for reasons other than advancing the interests of Israel. The Neocons made various arguments that were tailored to appeal to national security hawks like Cheney.