30 x An-22s
They approached from all directions, because the An-22 has a hueg range, and even launching from Shepistan, I've got room to play with.
Launched at about 700 miles from Astarian Shores.
120 Firebees
Essentially, this means: the 1311 km max range of old-model Firebees would mean it's almost expended by the time it reaches coastline, passing over 1126 km. It could not penetrate deeper than 200 km. A 2000 km endurance Firebee could penetrate for ~900 km still.
I would assume that the 30 carrier planes, with their 50-100 m RCS, would be picked by Astarian OTH radars at extreme ranges. Envelope of several kms of course would not help targeting, but what Norse could utilize?
1) Send it's 60 Su-27s to intercept, 2 per each An-22 carrier. They have a 1500 km battle range. Utilizing their GSh-30-1 guns and 6 missiles under the wings, each Su-27 could engage both KC-22 carriers and the payloads they release, very successfully - Su-27 top speed at altitude is
2500 kph. The Su-27s radar would pick something as large as an An-22 at 100+ km away. This means that in ~24 minutes upon An-22s', the Su-27s will be to meet them in the 1100 km overseas boundary.
At what point this becomes feasible? Answer: when the An-22s are roughly 1500 km away. By the time they cover the 400 km to release drones, the Su-27s will be there to intercept.
2) Of course, the An-22s will try to release their payloads once seeing the enemy threat. It is questionable as to how many they could manage to release before th Su-27 pilots confirm that those are unmarked craft conducting attacks on Astaria and down the An-22s... Let's say the Su-27 pilots get a grip only after several minuts of contact, and all Firebees are already released.
3) Su-27s will try to kill An-22s.
4) Su-27s will fly back, trying to spot, relay data about Firebees, and kill them if possible.
6) 17 reaction groups are created. 7 priority groups and 10 non-priority. Priority groups are seven A-50 AEW&C planes guiding groups of 10-15 MiG-29s (a total of 100+ MiG-29s) in 300x300 km envelopes or even larger. 10 non-priority groups are MiG-31s joined in Hunter Packs (4 planes, 1 serving as AWACS with PESA at full power and altitude of 20+ km, 3 serving as his hunter-killers), covering areas around 200x200 km.
7) OTH radar would detect Firebees with a say 10% error. That is rather high. But only 10% of Firebees would survive as I believe, since the ones detected by OTH radars would be then pursued by the reaction groups.
Now, hunting down the remaining 10-20 Firebees would be a major pain in the ass, but there are ground installations and it's possible that Firebees will pass over several of them. ~50% at least could be downed. Thus only 10-5 Firebees remain.
Not a serious threat. An-22s... say, many would be down. They would need 15 minutes to get out of Su-27s range, and if they detect the Su-27 itself at ~30 km, there would be no chance of them outrunning the plane.
It's not that hard to build a drone secretly for covert operations.
I was unaware that Astaria did a booming trade with the outside world.
I shall steal them from you! 
