In war it does'nt matter if the plane is armed or unarmed, all that matters is weather it's your or the enemies. Saying that it was umarmed is not a good excause. I remember whne PAF shot down this indian plane some where in the 60's. It was eid, and the plane was unarmed. So then why did we shot it down?
Because it does'nt matter weather it's armed or not, that Atlantique could've been able to serve as a bomber of a transport plane with a bit of modfitions. If we can make a transport plane into a heavy bomber and bomb indian bases etc. We can make Atlantique into a transport plane or something.
So again, if a unarmed indian plane was entering pakistani terrority while these countries were at war, you tell me. Would we let that plane go saying that it's umarmed or would we shoot it down thinking that iit might be spying or even be on a suicide mission. ?