In a presidential system, the executive power is vested in the President who is directly elected by the citizens of the country. Therefore, the vote power in a presidential system lies with the citizens who have the power to elect the President through the ballot box. The Attorney-General is the chief legal adviser of the government and is responsible for providing legal advice to the President and the government. The Chief of Army Staff is the highest-ranking military officer of the country and is responsible for the administration and control of the military. The Prime Minister is the head of the government in a parliamentary system and is responsible for running the day-to-day affairs of the government.