Read the treaty, as BB said, which NATO member is under attack? As for civilians getting slaughtered, it's a tribal civil war.
Granted maybe,but lets reduce this to human levels, NATO,essentially a bunch of mates,some closer friends than others,but when the push comes to shove mates stick together,they dont pretend to agree then once the sh!t kicks off suddenly hide behind semantics.
What on earth threat was Iraq to Britain (or the US for tha matter)? We still went in with our US allies though didnt we? So did Poland,but,as Ive heard,Poland got paid by the US to be in Iraq.....US not picking up the bill,is that the real reason behind Poland now playing the letter of the treaty game?