This is from wiki on "Chess opening"
Recognized sequences of opening moves are referred to as openings as initiated by White or defenses, as created in reply by Black. So answering your post it only true for Black. Under certain openings White can choose to switch to attacking "variants" for example Four Pawns Attack line in the King Indian Defense.
Hi, just a simple question as Im new here and I dont understand alot of things. In the opening page thingy, it shows "Kings Defence" Sicilian Defence" "Something Attack" etc. I was just woundering, are openings classed attack if your white, and defence if your black? The french defence for example, thanks any help appreciated.