Does defense win games soccer?

Yes, I certainly think so.  It is definately a game of defense, in my opinion.

No, ways !  Good defence is important but in the long run the winners will be the teams with strong offence game.   Brazil had many years medium (sometimes closer to "weak") defence and great front line (strikers) and did extremely well.  Holland ,at her prime, did well as a result to their very strong front line (not the defence !).   Same applies to a long list of national teams:  Germany, Spain, Russia, Italy, Hungary, Aregntina....... and for teams such as: Barcelona, Real Madrid, Manchester United, Milan...... just few to mention. 

Hi OranD, My knowledge of scoccer is not anything like your own.  I've only watched my grandchildren play  and from watching them, it seems to be defense that wins the games.  I have two still playing, one in college and one in high school.  They love the game.