I think his anger towards the US began when Iraq invaded Kuwait. He offered his "Army" to help Saudi Arabia, but was rejected. The Saudi's then asked for American assistance. Athough America helped supply his army while fighting the Soviet's he was angered that the Suadi's prefered American assistance over his own. At least, this is how I understand his hatred for America.

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"Like so many of our people, we have now had a personal experience of German barbarity which only strengthens the resolution of all of us to fight through to final victory."-King George VI
"Casualties many; Percentage of dead not known; Combat efficiency; we are winning."-Colonel David M. Shoup-Saipan