"It is cold in Russia."
Translation:Tha i fuar anns an Ruis.
SrGI2aed explains why it is i. But in fact countries are feminine anyway. Or at least they all are as far as I know. They are pretty generally in a range of languages. Look at all the ones that end in a. Most of these are Slavic or Romance in origin, languages in which a is generally a feminine marker. D