Just a point of clarification: is this 'Europe' broadly equivalent to the 27 countries of the European Union?
Chess.com's Europe Group

Just a point of clarification: is this 'Europe' broadly equivalent to the 27 countries of the European Union?
yes

Actually it's more than that! We are talking here of continental Europe. Roughly speaking it includes the 47 member countries of The Council of Europe, hence our logo picture. Here is a link for more info.
http://www.coe.int/T/E/Com/About_Coe/Member_states/default.asp
Hello Fellowchessplayers!
Do you live in Europe? Then I would like to draw your attention to our Group : Chess.com's Europe Group . Everyone who lives in Europe or has lived there is allowed to join. Meet, chat, talk, exchange ideas and play chess with people all over Europe. We are not a big group at the moment, but we are a group of very nice, courteous people who want to know each other and to improve our chess skill in the process!
The link is http://www.chess.com/groups/home/chesscoms-europe-group
We also have Mega Team Matches. For example an open one is that against the Australian Team. We already have over 65 players registered!
The link is http://www.chess.com/groups/team_match.html?id=411
So join and enjoy!
See you there
With chessgreetings
Regis