How is the concept of fair procedure applied here?

This was an order issued during the civil war by president lincoln ending slavery in the confederate states

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?  

Why did the other allies like great britain and france not support wilsons 14 points?