What are the nationalities of America, Australia, France and Britain?

Take the United States as an example, its status overseas or as an American citizen is relatively high, and the government's response to foreign affairs such as natural and man-made disasters is relatively fast. However, local taxes in the United States are very high, medical care needs to be insured by itself, and social welfare is average. Australian naturalization is prone to imprisonment due to immigration supervision. It is difficult to be naturalized in Britain, with good welfare and free medical care.