Russia's rouble strengthened on Dec. 25 as exporters sold foreign currency in response to government pressure and to meet tax payments, but trading volumes were thin as many Western markets were closed for the Christmas Day holidays.
Russia's War Against Ukraine
Reuters: Russian ruble strengthens in thin trade
A man speaks on his mobile phone under a board listing foreign currency rates against the Russian ruble outside an exchange office in central Moscow, on Dec. 17, 2014.