The world is not superficial like you imagine.
US was selling tons of weapon to Iraq before for war of Iran vs iraq.
Then us forsee the economic catastrophy and need to cause the war and improve the supply(the theory of John Maynard Keynes) to avoid it. Then US made Kwait to break the price rule of OPEC and produce more and tryed to sell more to compete against Iraq who had plan to pay back the money for the weapon which they bought from us.Of course, Irac didnt make enough money and Us was suddenly insisting on Iraqs paying.
Sadam was furious about it. And in addition, US taught a tecnic for diging and stealing oil from Irac territory to irritate Sadam even more.
Finaly, Sadam invaded Kwait and that was the excuse for the first Iraq war.
In addition, during Iraq war, US was keep on selling their weapon to IRAQ(enemy).
This is called IRAQ GATE SCANDAL
http://en.wikipedia.org/wiki/Iraq-gate_(Gulf_War)
They did same thing several times to save the world economy.
I dont know well about this bombing of gaza. But you cant see that simple like Good vs Bad like stupid brain washed people.
Its way more complicated and There is always another intention.