What necessary elements constitute a state

Elements of State:
A State stands identified with its four absolutely essential elements:

1. Population:
State is a community of persons. It is a human political institution. Without a population there can be no State. Population can be more or less but it has to be there. There are States with very small populations like Switzerland, Canada and others, and there are States like China, India and others, with very large populations.
2. Territory:
Territory is the second essential element of the State. State is a territorial unit. Definite territory is its essential component. A State cannot exist in the air or at sea. It is essentially a territorial State. The size of the territory of a State can be big or small; nevertheless it has to be a definite, well-marked portion of territory.
3. Government:
Government is the organisation or machinery or agency or magistracy of the State which makes, implements, enforces and adjudicates the laws of the state. Government is the third essential element of the State. The state exercises its sovereign power through its government.
4. Sovereignty:
Sovereignty is the most exclusive element of State. State alone posses sovereignty. Without sovereignty no state can exit. Some institutions can have the first three elements (Population Territory and Government) but not sovereignty.