A nation is nation different from a state in various ways. A nation will have a president but a state does not have a president as they are under one nation.

This is known as a nation-state. In a nation-state, the political boundaries of the state align with the cultural or ethnic boundaries of the nation.

It can be either a state or a nation, but is more often a nation.

a state is a part of a nation.

Switzerland is considered a nation state. It is a country with a defined territory, a permanent population, a government, and the capacity to enter into relations with other states. Switzerland is not a stateless nation, part-nation state, or multinational state.