Is it Britican or Americlish?
Are we New Albanian, or New Gahanian?
I must differ with Mrs. May, as I may be an American, but it doesn't preclude world citizenship. Edwin Moses taught me the difference during the 1984 Olympics, and I've never forgotten it.
The Economist explains: What is the difference between nationality and citizenship?
The two concepts are closely related but not quite the same
... In general, to be a national is to be a member of a state. Nationality is acquired by birth or adoption, marriage, or descent (the specifics vary from country to country). Having a nationality is crucial for receiving full recognition under international law. Indeed, Article 15 of the Universal Declaration of Human Rights declares that “Everyone has the right to a nationality” and “No one shall be arbitrarily deprived of his nationality nor denied the right to change his nationality” but is silent on citizenship. Citizenship is a narrower concept: it is a specific legal relationship between a state and a person. It gives that person certain rights and responsibilities. It does not have to accompany nationality.