Hardened Aircraft Shelters Worldwide

Now I don’t know much about HAS, but I assume NATO has a basic going standard, and that Soviet-era military grade concrete is absolute rubbish. I got interested when I was down at Paphos Airport last week and got a gooood look at Papandreou AFB occupying the north-east corner of the reservation. I counted five hardened shelters, all pretty similar to those ones I’ve seen in Germany, so I guess thats a basic standard. I find it hard to believe one of those things will stop a 500lb LGB though!!

Any know stuff about shelters? Who’s got the best, and who builds em?

Twi.