Which political system is characterized by the following statements?

Statement 1: The government is typically led by a single leader or a small group of leaders.

Statement 2: Individual freedoms and civil liberties are often restricted or suppressed.

Statement 3: The political power is concentrated in the hands of the military, with a strong influence on governance.

Statement 4: Nationalism, authoritarianism, and a strong emphasis on order and discipline are key aspects of this system.