What are the main characteristics of the following ? ~ the japanese ~ germans ~ americans ~ the british ~ russians

1 The Japanese is a nation that lives in Japan. They speak Japanese.
2 The Germans live in Germany and they speak German.
3 The Americans are native inhabitants of the USA. Their state language is English.
4 The British are inhabitants of the British Isles. Their language is English.
5 The Russians are people living on the territory of the Russian Federation. Their state language is Russian.