Not another geographical disagreement!
Generally speaking when speaking English the phrase 'Eastern Europe' does not mean countries right over in the east next to Asia, it's a political expresssion and means countries of the former Soviet bloc, i.e. Poland, Czechoslovakia (as it was), Romania, Hungary, Bulgaria and what used to be known as Yugoslavia; although it includes Lithuania, Latvia and Estonia they would perhaps more commonly be referred to as the Baltic States.
'Western Europe' includes countries like Finland, which are in fact further east than 'Eastern European' countries like Poland and Hungary..
'East Europe' is a different matter entirely and would mean countries with a geographical location towards the east! Similarly 'Western Europe' and 'west Europe' mean different things.
So you could argue either way - that the question meant right over in the east (where?) or did it mean the former eastern bloc? Only Limo knows what he meant, but I bet you 10 to 1 he meant the countries I've mentioned, so the answer was somewhat misleading.