1994 Cheney explains why invading Iraq would be a bad idea
Because if we’d gone to Baghdad we would have been all alone. There wouldn’t have been anybody else with us. There would have been a U.S. occupation of Iraq. None of the Arab forces that were willing to fight with us in Kuwait were willing to invade Iraq.But of course, on September 11, 2001, a bunch of non-Iraqis flew planes into our buildings, so that makes all these potential occupation problems disappear.
Once you got to Iraq and took it over, took down Saddam Hussein’s government, then what are you going to put in its place? That’s a very volatile part of the world, and if you take down the central government of Iraq, you could very easily end up seeing pieces of Iraq fly off: part of it, the Syrians would like to have to the west, part of it — eastern Iraq — the Iranians would like to claim, they fought over it for eight years. In the north you’ve got the Kurds, and if the Kurds spin loose and join with the Kurds in Turkey, then you threaten the territorial integrity of Turkey.
It’s a quagmire if you go that far and try to take over Iraq.