<Tr> <Th> Today part of </Th> <Td> Czech Republic Slovakia Ukraine ∟ Zakarpattia Oblast </Td> </Tr> <Tr> <Td_colspan="2"> Calling code + 42 was withdrawn in the winter of 1997 . The number range was divided between the Czech Republic (+ 420) and Slovak Republic (+ 421). Current ISO 3166 - 3 code is "CSHH". </Td> </Tr> <P> Czechoslovakia, or Czecho - Slovakia (/ ˌtʃɛkoʊsloʊˈvækiə, - kə -, - slə -, - ˈvɑː - /; Czech and Slovak: Československo, Česko - Slovensko), was a sovereign state in Central Europe that existed from October 1918, when it declared its independence from the Austro - Hungarian Empire, until its peaceful dissolution into the Czech Republic and Slovakia on 1 January 1993 . </P> <P> From 1939 to 1945, following its forced division and partial incorporation into Nazi Germany, the state did not de facto exist but its government - in - exile continued to operate . </P>

What is the difference between slovakia and czechoslovakia
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