I found all the money. Well i got it from an independent YouTube. In the 1970s Japan won the economic war by building efficient goods. They had bank vaults full of greenbacks, balance sheets full also. They could not buy yen that would make there goods to expensive. So they turned it all into debt and loaned it to themselves. Brilliant no one was the wiser, by the 1990 they were one of the largest debters only they are both creditor and debtors.
You can believe this or not with the state of trade today Ii tend to. The YouTube had to say there was a mysterious Japanese website that said "it is time for the Yen to return home" if Japan cashes out, that will hit the greenback hard.