It can be anything from almost no effect whatsoever right up to civil war. It depends on the nature of the difference between the opposing cultures. Opposing cultures can get on very well at times, and in other cases it can be a major problem. Most civil wars come down to different ideas and often different cultures within a country.
Hinduism and buddism
Hinduism and buddism
Divide your country into two separate societies with opposite cultures.
When a country has effectively become two nations with two conflicting cultures.
Two forces that can affect an object's velocity are acceleration and friction. Acceleration can increase or decrease the velocity of an object, while friction can slow down the object's motion by opposing its direction of movement.
Greece is a country in Europe and Italy is a country in Europe. So, they are two different places with different languages and cultures.
Fate and free will are the two opposing worldviews in Oedipus Rex.
The two opposing forces in a book are the protagonist and the antagonist.
the two opposing neegrows fight for the big handsome turkeys, whilst the white men continue there powerstuggle against there own breast meals.
Civil war is different from another war because regular war is war between two or more independent countries and civil war is war where the two(or more) opposing forces are all from the same country and are either trying to create their own country as in the American Civil War or are trying to seize control of the whole country from the opposing party as in the Bolshevec Revolution.
A rhombus has two opposing acute angles (less than 90º) and two opposing obtuse (greater than 90º) angles, with the opposing sides being parallel and the sides being of equal length. A parallelogram can have the two acute angles and two obtuse angles, but have sides of different lengths. That is: two opposing sides shorter than the other two opposing sides. All angles total 360º
The Two Cultures was created in 1959.