I'm not sure I understand. That's exactly the point of sanctions, to use the power of the US economy and the USD to exert American influence. You're right, they

I'm not sure I understand. That's exactly the point of sanctions, to use the power of the US economy and the USD to exert American influence. You're right, they're not always effective at achieving their immediate goals, but they signal US disapproval and help pursue long-term goals without shipping those arms or soldiers anywhere.