it is forced via threats of tariffs or US military attack upon any nation that tries to settle trade outside of the USD/SWIFT hegemony.

https://www.reuters.com/markets/currencies/trump-repeats-tariffs-threat-dissuade-brics-nations-replacing-us-dollar-2025-01-31/

"We are going to require a commitment from these seemingly hostile Countries that they will neither create a new BRICS Currency, nor back any other Currency to replace the mighty U.S. Dollar or, they will face 100% Tariffs," Trump said on Truth Social in a statement nearly identical to one he posted on Nov. 30.

https://www.timesnownews.com/business-economy/economy/trump-threatens-brics-over-dollar-threat-amid-stablecoin-push-article-152316927

Amid rising tensions over global trade and currency supremacy, US President Donald Trump has sharply criticised the BRICS alliance, calling it a “little group” trying to dethrone the US dollar. While pushing for the GENIUS Act to regulate stablecoins, Trump issued a 10 per cent tariff warning to BRICS nations and doubled down on his stance that the dollar must remain the world’s reserve currency “for generations to come.”

https://arynews.tv/gaddafi-and-saddam-targeted-for-threatening-us-dollar-hegemony

The cases of Saddam and Gaddafi fit into a broader pattern of Western interventions targeting leaders who challenge US economic interests. The petrodollar system, established in the 1970s through agreements between the US and Saudi Arabia, ensures that oil revenues are reinvested in dollar-denominated assets, such as US Treasury bonds, sustaining demand for the dollar. Any move to trade oil in alternative currencies threatens this arrangement, as it could reduce global demand for dollars, weaken the US economy, and diminish America’s ability to finance its deficits through foreign capital.

Both leaders’ actions were perceived as existential threats to this system. Saddam’s euro switch was a direct affront to the petrodollar, while Gaddafi’s gold dinar aimed to create a regional alternative that could bypass Western financial institutions entirely. Their defiance was compounded by their geopolitical stances: Saddam’s hostility toward US allies like Israel and Saudi Arabia, and Gaddafi’s support for anti-Western movements, including the Palestine Liberation Organization and the Irish Republican Army, made them convenient targets for regime change.