We know what the drillers were doing. They were using slant drilling, which the Iraqis lacked the technolgy and equipment to do, to plunder oil from Iraqi oil deposits. Kuwait used this oil to increase its production, which drove down the price Iraq got for its oil.
We know what Olebush told his ambassador to tell Saddam. It is NOT TRUE that the US does not take positions on the borders of Middle Eastern countries. They have done this on several occasions.
Saddam thought that Olebush was a wimp. Olebush had a reputation as a wimp at the time. Limbaugh called him a wimp many times.
Anyone that knows the history knows that the British separated Kuwait from the former Ottoman province. Kuwait was once a province of Iraq. The Brits did this so they could easily get to the oil near the coast and would not have to deal with the bellicose people of Iraq farther up the river. The Brits made a deal to set the borders of Saudi Arabia with Kuwait, and Kuwait lost a lot of territory to Saudi Arabia.
We also know that the Emir of Kuwait was suggesting in OPEC that they begin to require payments in Euros rather than dollars. That pissed off the Americans. Iraq had LOTS of money in US banks, and the Emir was talking about moving it to Europe, where he could earn more money.
We also know that the full cost of the Iraq War was covered by other contries. The US actually made a profit on the deal, especially if the pensions for wounded veterans and their families are not included. That huge pile of Kuwaiti money in the US was mostly spent by the Kuwaitis on the war and repairing all the damage done by the invasion and the expulsion of the Iraqis.
It is safe to assume that the terms of the deal between the US and the allies were secret and specified exactly what the US could and could not do. The US was not allowed to remove Saddam. Olebush counted on this being done by the Kurds and other anti Baathist Iraqis, because he said so at the time.
And of course, everyone knows that the CIA was famous for just this sort of dirty trick and that Olebush was very, very close to the CIA, as he had been its director.