The imaginary line of secrecy and mistrust is called the iron curtain.
William Bradford basically describes the natives as unfriendly and hostile. He describes them as unfriendly and hostile because when the colonists arrived at the shores, instead of being welcomed with friendly smiles, they were welcomed with deadly arrows.
The answer is D. Principalities were small territories that were run by Russian rulers.
This due because they population was very small, and it still hasn't reached by the mongol Empire But they were very close with Russian Territories