Because behind every war, there is a bank ready to lend money to the US. government. Once the lending is done, every US. Citizen will have to repay the lending amount plus interest on the loan. Banks make TRILLIONS from government lending. Go on YouTube and watch The Creature From Jekyll Island by G. Edward Griffin. This is a long but a very RELEVANT video to today's economy because it will show you how the money supply works.
RE: US Blocking Chinese Banks From Using Dollar! - Only The BEGINNING!