As others have said, airliners crossing a war zone isn't unheard of. Surface to air-wise, generally the threat has been MANPADS, not strategic SAMs. But, in this case, it was different.
13 years ago, I was providing CAS at an outpost called Lwara on the Afghan/Paki border south of Kabul. Ground battle in progress, am attempting to hit Taliban firing positions that are attacking the outpost, working my formation as needed to make it happen; and the AWACS is giving me traffic calls in-between attacks, of civil airliner traffic overhead descending into Pakistan and capping my flight in altitude in order to avoid their altitude blocks.
As Im coming off my bombing attacks in my recovery climb, Im watching decending 747 traffic crossing over the battle area I'm in. I do wonder what the airliner pax/crew must've been thinking, as they had to have seen the battle raging below, and the A-10s wreaking havoc with bombs, rockets, and strafing runs 10K-15K below them.
Weird as hell having to keep track of the fluid battle situation below while bombing and strafing the enemy, while at the same exact time having to acknowledge a traffic calls from AWACS. "[on VHF to AWACS] Yeah, copy Saxon, visual separation on the Cathay 74 overhead; [followed immediately on UHF to ground FAC] ...Lead's in hot from the west with strafe, hitting the south wall of your perimeter, copy they're inside your wire...."