Earlier quoted context omitted.
If I bring a suitcase full of dollars home with me from a trip to the US (assuming I make it through border control with that much cash), I don't see what kind of jurisdiction the USA would have over me for simply owning dollars. These are just pieces of paper, they don't provide any kind of jurisdiction. The American banking system may refuse to serve me perhaps, but it's not the dollars that give the American gover…
> These are just pieces of paper I let you have one guess which entity gives those pieces of paper their value.
The USA can print and lend dollars to control the value of the currency on the global marketplace. When trading outside of the USA, people give the bills their value.
You can substitute a suitcase with a million dollars for a suitcase full of gold or a suitcase full of diamonds, or a suitcase full of Pokémon cards. Outside the official banking system, the value of paper money is whatever the people trading perceive it to be. In some cases, that value can be larger than a million dollars (i.e. in countries where their own currency is in a free-fall, where the government is trying to limit the supply of foreign currency, but people want to exchange their local currency for something more stable; people in Argentina, Lebanon, Sri Lanka, and Turkey might want to do that).
If, for whatever reason, Russia pays for North Korean drones to murder Ukrainians, there's absolutely nothing the American government can do about that.