The idea that national unity will rise when a foreign rivalry exists was echoed by

Describe what is meant by “third-generation” environmental problems; use an example to illustrate your point.

What will be an ideal response?

What did the ancient Greek philosophers Plato and Aristotle argue was an effective antidote to economic coercion by other states?

a. strong militaries b. extensive foreign trade c. abolishment of national borders d. self-sufficiency