Isn't in the best interest of the Bankers for us to b in Iraq?

Congress asks the Federal Reserve (which according to the U.S. supreme court is a 'private bank' and nothing to do w/ the govt) for Billions of dollars to invade countries that did nothing to us (Korea, Nam, Kuwait, Iraq) and we hav to pay it back 'with interest'. Seems like the U.S. should print it's own 'interest free' $. That way the U.S. would not be beholden to any private bank.