[nostrademons]

Take a look at OPEC companies that have priced oil in other currencies:

Iraq started pricing oil in euros in 1999:

https://www.theglobalist.com/iraq-the-dollar-and-the-euro-5/

Iran started pricing oil in yuan in 2012:

https://www.bbc.com/news/business-17988142

What's our geopolitical relationship with Iraq and Iran now?

[randomopining]

So they changed their pricing currency and then we became enemies? Or we were enemies, and they changed their pricing currency because of that... lol

[tareqak]

The US CIA overthrew the democratically elected government of Mossadegh in Iran and then received backlash for it in the form of the Iranian Revolution [0][1].

[0] https://nsarchive.gwu.edu/briefing-book/iran/2017-06-15/iran...

[1] https://en.wikipedia.org/wiki/Iranian_Revolution

[totalZero]

The first Gulf War began in 1990, and the Iranian Revolution took place in 1979. The causality may well have taken place in the reverse of what you suggest.

[notahacker]

Yep. You'd think if the reason the US restarted their war with Iraq was using Euros as a reserve currency, they might have made a bit more fuss about those pesky Europeans creating the Euro with the explicit goal of being a global reserve currency a few years earlier...

[spiralx]

Being the largest reserve currency has more costs to the US than benefits overall and policy has been to try and reduce that exposure for the last decade or so.

https://www.brookings.edu/blog/ben-bernanke/2016/01/07/the-d...

Being a reserve currency means any financial crisis in the world tends to affect your currency and trade, not a good thing.