Why did japanese shotguns see foreigners as a thread in the mid 1500s?

In italy, the distance between milan in the north and palermo, sicily, in the south is about 550 miles. in the united states, the distance betweenboston, massachusetts, and savannah, georgia, is about 900 miles. do you think the american revolutionaries of 1776 in the 13 colonies faced some of the same challenges as the patriots who struggled for italian unity in the 1860s?  

Discuss the rise and fall of westernization in japan.

How long have counties been a part of the government structure of the united states?