Hmm it does make one wonder why we spend all this moolah on our defence (from ourselves) when such damage can be wrought by a strand of RNA.
For me, I'd take a hard look at all that armour and vehicles parked up at all those ex-RAF bases, the Trident replacement, the carriers (we just had a 10+ year capability gap with no real issues), all front line fighters (why so many given we're only probed by the occasional Bear), and all of our overseas commitments