For example, for the first Gulf War we billed Kuwait for every bullet, bomb, soldier - every penny spent. We brought all our Cold War old stuff from Europe and elsewhere - no longer needing it with the Soviet breakup and most of it old technology - and sold it at 100% retail to Kuwait. Kuwait, of course, had no choice but to agree - but then we own Kuwait anyway - an area of Iraq that had exactly zero population - declared it a new country with the head of the camel caravan the king - for which they got a 1/7th royalty for the oil. With such a tiny population, Kuwaitis became the wealthiest-per-person population in the world
We did not fight for Kuwait freedom. We fought to keep our oil and we made the Kuwaitis pay for it. A few years ago I spoke to a Kuraiti businessman who moved to the USA. In his view Kuwait was a victim of both Iraq and then the USA. Even suggested the USA caused the war by false assurances to Saddam Hussein that we would just diplomatically oppose his taking Kuwait. But then when he did, we sent an absurdly large and expensive military force beyond anything needed and kept it up until the USA had "sold" Kuwait all our old military surplus at retail - to be paid by Kuwait out of their 1/7th royalty.
A curious view. The USA doesn't go to war because America is nice. The USA has become so spoiled in hippy values, to be environmentally pure, totally safe workplaces, endless benefits, welfare etc etc - that trying to keep the USA from economic collapse with the lost industrial base and cheap labor in other countries taking the jobs is a very difficult balancing act - and military action and positioning is part of that complexity.