Answer:
Opposition
Explanation:
I am not aware of whether you are looking for a general answer or not, but the elimination of opposition is usually what makes a fascist gov't
A utopia would be an example, It is a perfect and equal world with no problems or conflicts.
From lakes and grasslands with hippos and giraffes to a vast desert, North Africa's sudden geographical transformation 5,000 years ago was one of the planet's most dramatic climate shifts.
The transformation took place nearly simultaneously across the continent's northern half, a new study finds. The results will appear in an upcoming issue of the journal Earth and Planetary Science Letters.
http://www.livescience.com/28493-when-sahara-desert-formed.html
because those rebels in Nicaragua were fighting against a regime that was heavily influenced by communists