Re: HMS Unicorn
"if the gov makes any more cuts we might need to press-gang [HMS Unicorn] into service once more :("
Presumably it couldn't be made ready in time to help out in the incident off Scotland a couple of weeks ago, when a suspected Russian submarine was observed not far from the UK base at Faslane.
The UK, now having no maritime patrol aircraft of its own (!?), had to call for support from maritime patrol aircraft from the US, Canada, and France. That's what friends are for. (What's Trident for?)