Kosovo
Germany with just under 82 million
Russia has the largest foreign born population of any European nation.
I believe that the nation with the largest Christian population is China.
Yes. Before the Soviet Union collapsed it was the largest Eastern European nation not a part of the Soviet Union. However after the Soviet Union collapsed, Ukraine became the largest Eastern European nation (excluding Russia), and the largest European nation wholly in Europe.
With a population of about 82 million Germany is the largest country in the European Union in terms of population.
Germany has the largest GDP of any European nation. Luxembourg has the largest GDP per capita rate of any European nation, and any country of the world.
Brazil is not the largest; Brazil is the 5th largest nation in terms of population and area.
Russia is the largest nation in the world. It is in northern Europe and Asia
European Russia is the largest European country by area and population.
China
The largest population country is Indonesia.