@Reagaknight,
you still haven't addressed the main point so let me put it another way for you.
you are the US Govt., you decide you want a new ford mustang.
you get to the ford dealer and he says "we no longer accept US dollars, we only accept japanese yen."
as the US Govt. you now have two choices.
1. declare war on the ford dealer, kill the owner, install your friend as the new owner and drive home in you new mustang until it breaks down. When your friend cant fix it ( he knows nothing about cars )you declare war on him and have him deposed and hung.
2. you work for some Jyen and buy you new mustang.