Sovereignty is the, we'll turn to it later, we'll look at sovereignty again, but linked to sovereignty is the idea that you can make legislation, you can pass laws and then you can say these laws are going to be carried out, implemented by courts followed by sanctions  though very little law is related to foreign policy  because the British government or the Russian government or the United States government can't make laws which apply worldwide or outside its own area of claimed sovereignty  so there is a difference of the environment in which foreign policy takes place.