Until 1880, America had a policy by which unlimited numbers of people from around the world could enter this country legally with few exceptions. WHat was the name of this policy?

Trench warfare began after germany failed in its initial plan to seize france and bring a quick end to the war. negotiate a temporary truce with the allied forces. attack the allies by sea with its powerful navy. storm across the eastern front to attack russia.

What were four reasons for the decline of spain as a world power

Why are nation-states difficult to create?