Superpowers, first established by Great Britain, arguably the worlds first superpower nation in approximately the year 1900.
The world's strongest nations are labeled by the word superpower and the world's two top superpowers currently are the United States and China.
The term dominant is used to describe the animal in a group that is the largest strongest or has the highest status.
If the largest animal in a group, is also the most dominant, then it is usually called the alpha male / female.
The dominant allele.
The term used to describe opening a window onto unfamiliar worlds and offering a fresh look at familiar worlds is "sociological imagination," coined by C. Wright Mills. It involves the ability to see the connections between individual experiences and broader societal issues.
"Worlds collide" is a common phrase used to describe what happens when two people who know the same person from different places meet each other.
Terms used to describe the way the world is conventionally divided includes nation-state, multi-national states, and nations.
The Iron Curtain Nations.
As developing nations industrialize and make use of capital resources new challenges to the supply of the worlds natural resources will no doubt appear because more and more resources are being used. Also there are more people to feed and provide resources for.
The term of "Allies" was the most often used term to describe the coalition of countries opposed to the Axis powers. Another similar term was "allied forces". Each term means the same thing.
There were many different nations or tribes.
The Iron Curtain