I've always wondered why we in America and some other countries refer to Deutschland as Germany too.
I learned to do so after spending 3 weeks in Germany on business. To purchase that
fine beer and good food, one had to pay for it in
Deutsche Marks or German marks (dollars).
Now one has to have Euros.
And I was in Munchen or Munich for 3 days and one of those days I spent in the biggest beer hall I've ever seen. And they sure did "roll out the barrels".