HI, a frontier is an area of unexplored land close to or near a states borders.
The U.S wanted to remain neutral, based on what Woodrow Wilson wanted, but after Germany started sinking U.S ships, they got included.
It is the common man who participated in the french revolution due to the heavy taxes put upon by the monarchy. the seemingly glory of the french therefore came at a heavy price for the common man.
The powerful nations of Europe were ready to formally expand their empires into Asia and Africa. Known as New Imperialism, this desire for expansion was motivated by many things, not the least of which were the promise of economic growth, the sting of national rivalries, and a sense of moral superiority.
