McGrath ~ I have to disagree with you this once. The word "Caucasian" does not necessarily, and not "correctly," refer only to residents of that tiny corner of the former USSR. That's just one of several meanings (or, better, "understandings") of the word.

See Q's post of [30 Jun 09 - 09:18 PM] ~ there is a time-honored scholarly definition whereby that term is used to describe the people native to a large area of Eurasia, the same area where the languages are classified as "Indo-European." This very large and relatively diverse group does indeed share some common characteristics.

It can, of course, be argued that such usage is obsolete. But it's arguable. It can also be argued that ANY classification of humans into separate "races" is obsolete, too.