Basically just saying they make sure the US remains global top dog by doing anything including interfering with foreign elections, toppling governments, spreading disinformation, assassinating politicians, etc.

The "petrol dollar" is/was a system where if you wanted to purchase oil on the international market, you had to do so with the US dollar. This was accomplished through a few means, such as OPEC and the US destroying any country that tried to sell oil for their own currency, such as Iraq, Libya, Syria etc. It has had serious negative consequences for the rest of the world, between this and the IMF we have looted the world and subjected many to brutal dictatorships, propped up by their willingness to sell their peoples lives short to import energy or make interest payments on loans that will never be paid off.

In the end, all the countries we tried this on ended up worse off (Syria) or completely failed (Libya), the petrol dollar system shows serious cracks in the face of BRICS, the international image of the US being the cultural mecca of the world and keepers of the peace has become a total joke. Meanwhile, education has gone to shit, healthcare is unaffordable, inflation has robbed the wealth of our society, there is social strife and political violence is only getting started.

As a veteran, having run the numbers on the effects of the operations I was involved in, all I can say I accomplished was killing a few dozen civilians in bombing campaigns. This wasn't "the deal", we couldn't protect our own people from human trafficking and drugs, we have made a serious error in judgement in how we conduct ourselves abroad.