According to the CIA World Factbook, the Republic of Cuba is a communist state. The head of government is President of the Council of State and President of the Council of Ministers Gen. Raul Castro...
A unitary government may be defined as on in which the powers are concentrated in the hands of a central government. There may be sub-divisions, but they are not free from the control of the central...
It can be, but not necessarily. A unitary state is simply one where the power is centralized in one place and contrasts with a federation in which power is divided among states/regions and a central...