A government in which all power belongs to a central agency is a monarchy. It is also called a unitary government.
Unitary
Prevent any one part of government from having too much power.
Government by a single person having unlimited power; despotism. - As is in North Korea
The federal system of government is the citizens and government having equal power not a monarchy, but each side being even.
A government in which all power belongs to a central agency is a monarchy. It is also called a unitary government.
Unitary Government
The power to declare war is a power that belongs to Congress.
Unitary
(in the US) No single agency of government controls the outlook and/or distribution of electrical power.
The Department of State, as the embassies and consulates (http://www.usembassy.gov/) from the US depend upon that government agency.
Prevent any one part of government from having too much power.
The Atomic Energy Commission (AEC) regulates nuclear power plants in the US.
Federalism
The United States having as complex a government as it has, the people have the power through their representatives but no one holds more power than the Constitution.
yes
Government by a single person having unlimited power; despotism. - As is in North Korea