Lewis Pulsipher’s article The Essence of Euro-style Games was published in The Game Journal. It describes what makes Euro games, particularly in opposition to war games. I don’t think the article is that great — there’s little new in it — but it had one interesting point:
Euro games are very pacific. At PowWow04 Stephen Glenn stated (paraphrased) “if this were a Euro game, you would prevent someone from building up, rather than tear them down.” Not surprisingly, this leads to a solitaire aspect (almost inevitable if you don’t want to allow tearing down).
The inability to tear down what others have built also leads to a game that continuously moves forward! I think that’s a lot more important. If players have a goal of building stuff and other players can keep on tearing it down, there’s a chance the game will never end. If the only thing you can do is to slow the other players down and prevent them from building, the game system never goes back — only its speed of advancement is slowed.