Coup d’etats are most often

extremely peaceful.
very violent.
unsuccessful.
long lasting.

very violent.

A coup d'etats translates to "blow of the state" suggesting even in the language that it is a violent overthrow. Coup d'etats are typically violent and end with the death or imprisonment of the former leader if they are unable to escape. A coup is executed by the military or the elites of a society to remove a leader or to totally change the government system.

Examples of coup d'etats in history include Napoleon in France, Franco in Spain and Qaddafi in Libya.

executive, (president and about 5,000,000 workers) legislative (senate and house of representatives) and judicial (supreme court and lower courts)

explanation:

answer; the period of time known as the middle ages;