What cause of world war i do you believe was the most dangerous? explain?

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?  

Aclaim about history is most likely not valid if it has which of these characteristics?

What are the expressed and implied powers of the president