International organizations that facilitate these interactions (like the UN)
Meetings between states, international organizations also take on lives of their own
Nation-State
A country and its government
Not all states are nations and not all nations are states
State
A political unit that has sovereignty over an area of territory and the people within it
Elements of a State
Population
Territory
Sovereignty
Government
Population
Community of persons, "Citizens shall enjoy rights and freedom and perform their duties towards the state", no limit of the population size
Territory
Territorial unit that is fixed, "The whole territory of the State is under the sovereignty or supreme power of the State", can lease out its territory
Government
An organization or agency which makes, implements, enforces, adjudicates the laws of the States, has three organs or branches: (1) Legislature; (2) Executive; (3) Judiciary
Sovereignty
Most exclusive element, Without sovereignty no state can exist, the exclusive and prerogative to exercise supreme power over all its people and territory