Relations Between States

Just as with the each individual in society, self-interest is at play with international relations.
States in the world are just like the people in society – they act in self-interest, but seek rules to keep harmony.
The security of person in society translates to national security for states.
Individuals usually give up some “sovereignty” in order to live in society.  They are subject to laws and conventions and are recipients of coercive enforcement by legitimate government authority.
But states will not give up their sovereignty….