Sentence:  Primary target would be shipments of tanks , guns , aviation gasoline and ammunition coming from <WSD>Russia</WSD> and Czechoslovakia . 
Meaning of the word marked with <WSD> tags:  a former communist country in eastern Europe and northern Asia; established in 1922; included Russia and 14 other soviet socialist republics (Ukraine and Byelorussia and others); officially dissolved 31 December 1991