The interception of Russian bombers by NATO air forces over the north sea and reports of Russian bombers north off Donegal makes it even more clear that the republic lacks a minimal air defence capability as a deterrent, nor does it have a capability to escort passenger planes if hijacked etc.
During the cold war Shannon airport would have been taken out by Russian nukes due to its strategic value to NATO, realised papers show Ireland had a secret pact to allow NATO to use Shannon in war with the USSR. Its highly possible we are entering another cold war.
What minimum air capability does the republic need ?
IMO, it needs a squadron of ex USSAF F16s, cost 15 million dollars each, all capable of dealing with hostile Russian bomber air threats.
It also needs to link up with NATOs early warning radar systems to warn of Russian bombers flying towards Irish airspace and work with the UKs developing antiballistic missile defence system. At present the state is neglecting its duty.
http://www.belfasttelegraph.co.uk/sunday-life/nuclear-war-the-hidden-threat-to-northern-ireland-28497656.html