In the United States, the term Caucasian is mainly used to describe white Americans, as defined by the government and Census Bureau .
Do you think of a middle Easterner when you read a police report which describes a suspect as as “ white male “ ? I don’t .
Technically speaking, there are four human races. Caucasian includes most of Western and Eastern Europe, the Indian subcontinent, Turkey, and much of the Middle East and North Africa. Black, which are the people of Africa south of the North African countries. Asian, the people of China, Japan, Philippines, assorted other countries near Chine, and the Native Americans. Last, the aborigines of Australia used to be considered Caucasian, but further analysis revealed that they do not actually belong to any of the other three races, and so are a race in their own right.
Subgroups of the major races do tend to have certain similarities—many Indians are as dark as blacks, but still are Caucasian, for instance—so describing people according to their apparent geographical origin (e.g. Middle Eastern) can be very valuable information for identification purposes.