A unitary system of government is opposite of a confederacy because in Unitary system all the power lies in the hand central government or union.
Confederacy, where all the weak states come toghther and form a strong union. In the confederacy states give direction the center and they willingly take decision related tp their provinces.
for instance
1. Confederation state of America
2. commonwealth of independent state -former soviet union
In Unitary , center give direction to all the states and states cannot denied to obey that order.
for instance
1. United Kingdom
2. China
The group of people who officially control a country is known as government
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