Comment by freehorse

But being the "policeman of the world" has helped with preserving dollar's status as the major currency for international transactions between third countries, and in particular for oil, which in turn makes the dollar a desirable currency, because everyone has and wants to have dollars, and has allowed the federal central bank to print the trillions of dollars it had been printing over and over without it losing its value. Any other country's currency would have been super-inflated if they did the same.