9/11 was an attack on the USA, which still is a NATO member. You could argue the attack was not by Afghanistan, but then Afghanistan was harboring the group that did.
The UN-supervised demilitarized zone on Cyprus is between Cyprus, which is not a NATO member, and North Cyprus, which is neither a NATO member, nor recognized by any NATO member except Turkey.
So you made three factual claims that are all three false. I will leave it as an exercise to the reader whether they carry the conclusion in any way.
9/11 was an attack on the USA, which still is a NATO member. You could argue the attack was not by Afghanistan, but then Afghanistan was harboring the group that did.
The UN-supervised demilitarized zone on Cyprus is between Cyprus, which is not a NATO member, and North Cyprus, which is neither a NATO member, nor recognized by any NATO member except Turkey.
So you made three factual claims that are all three false. I will leave it as an exercise to the reader whether they carry the conclusion in any way.