Check out the following pre-war Cheney gems. They show how he knew before he cooked up the war of how dangerous and possibly not successful it would be.
In an interview with the British Broadcasting Corporation in 1992, Cheney said: "If we'd gone to Baghdad and got rid of Saddam Hussein -- assuming we could have found him -- we'd have had to put a lot of forces in and run him to ground someplace...Then you've got to put a new government in his place, and then you're faced with the question of what kind of government are you going to establish in Iraq? Is it going to be a Kurdish government, or a Shia government or a Sunni government?" Mr. Cheney continued. "How many forces are you going to have to leave there to keep it propped up, how many casualties are you going to take through the course of this operation?"
[New York Times, 12/16/03]
Cheney told Russert on Meet the Press in March 2003 that, "from the standpoint of the Iraqi people, my belief is we will, in fact, be greeted as liberators."But in a speech to the World Petroleum Congress in 2000, Cheney reasoned that when the U.S. goes it alone to try to force political change, "it almost never works."
[Calgary Sun, 6/15/00]
No further commentary needed - the quotes speak for themselves.