Mainly Germany.
Mainly the U.S. and Canada
China mostly trades with Japan, USA, Germany, and Canada
The camps were mainly in Germany and in Nazi-occupied Poland.
Prussia
Mostly. there is also Yemen, Bahrain, Qatar, Oman and a few others.
Hawaii is mainly considered a peninsula
It is a peninsula in the southwest of Europe that consists mainly of Spain and Portugal.
No, it's (mainly) a peninsula.
your pee
Well, it mainly is a mixed economy. Since a country can have more than one type of economies that are operating, it is most likely that Canada is also the same.
Because the "Arabian Peninsula" is dominantly and mainly occupied by "Arabians" for a couple of millennium's now.