If Russia attacked Turkey from the rear what country would be best to help?

There were wars between Imperial Russia and Ottoman Empire in 16-20th centuries

http://en.wikipedia.org/wiki/History_of_the_Russo-...

I don't think either country is anxious to repeat its history.

the National Security council of Turkey was suppose to exclude Russia from "red list" countries of potential threat but did not.

http://rt.com/politics/press/nezavisimaya/russia-t...

Since Turkey is in NATO, and Georgia is a candidate, I am going to go with Georgia.

Though, I doubt it is powerful.

Why would Russia attack Turkey and what do yo mean by "from the rear"? There is no front nor back to a country.

Greece or Ukraine would be the best placed countries to help Russia defeat Turkey

Greece