Current US dollar strength is due to deleveraging. If net outstanding debt is being payed back, then the fractional reserve money multiplier runs in reverse. Debts that default also reduce the money supply.
Why was the Euro EVER worth so much....?
What magic is going on that allows the Reserve to deposit trillions into bank accounts but there is no inflation?
Switzerland, Sweden, Norway, Germany and other rich nations in the EU backing all the other poorer ones. Kind of like a piggyback effect if you will.