I agree, no one wants war, but Iran is pushing hard for it and doesn't show any desire for peace.
Iraq is going to be a victim of this once again.
Pakistan needs to fence the Iranian border immediately and man it with a very dedicated force, put up surveillance. If the US decides to invade Iran, its going to give rise to many, many militias and also give strength to present terrorist groups. The spill over effect will reach Pakistan in Balochistan which is already a messy place to hunt for terrorists due to its mountainous terrain. So better make sure the terrorists don't enter to begin with. It should be considered a matter of urgency for Pakistan.