You would be correct about Glasgow being a hub for troops going to and from Iraq, I was there about 2 days ago on my way back to the Sandbox from leave.
Was it the same "Glasgow Airport"? The other one is at Prestwick, which is 30 miles from the city centre. Prestwick is the one usually used by the military. My old school in Prestwick looked out over the airport and thus I developed an interest in aviation. Elvis made his only UK visit at Prestwick on the way to and from Germany when in the army. Yesterday's incident was at Abbotsinch, which is only about 8 miles from the city centre.
Stay safe. Thank you.