US is controlled by companies, US goverment spent this money to their own companies. they took the money from their people and from ıraq oil and gave it to their companies.
The money on earth comes from industry or resources. US cannot sell their products because of competition issues. they prefer to sell their dollar, weapon and arrest of others goods.
Dollar is a magic, if nobody believes it disappears. saddam was saying to sell their oil with Euro. So, US showed everybody that he is the boss. And now they want to create a country that will obey their rule. just like GB created a country called kuwait that was never existed before.
About germany and japan issue: even US cannot say them to give tax each year.they are global actors.