What is the purpose of a "coup d'etat

To overthrow a government in order to install a new one.

So the government doesn't continue taking things too far.

Explanation:

a coup d'etat is the removal of a government when the government does something so bad that the people are forced to take action, thing about the horrible things the french government was doing before the revolution.  

the andes or andean mountains (spanish: cordillera de los andes) are the longest continental mountain range in the world, forming a continuous highland along the western edge of south america. this range is about 7,000 km (4,300 mi) long, about 200 to 700 km (120 to 430 mi) wide (widest between 18° south and 20° south latitude), and of an average height of about 4,000 m (13,000 ft). the andes extend from north to south through seven south american countries: venezuela, colombia, ecuador, peru, bolivia, chile and argentina.

from wikipedia

hope this !

they united the colonies in their fight against the british.