A. Japan
A nation-state is a form of political organization under which a relatively homogeneous people inhabits a sovereign state especially : a state containing one nationality. They have a common ethnicity and national culture.
I believe the three terms you are looking for is diplomatic, military, and economic ways.
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They had the most gruelling job of all, as they had to do all the chores for the house, often working from 6 in the morning until 10 at night, with very little time off. In households like Shibden, there were normally a few servants working together. Despite this, the work was still demanding.
