It would seem that I missed a very interesting thread whilst offline:
Korea Sanctions Blockade
The most interesting part was from Not_a_boffin:
Don't go counting numbers - today there are only 6 DD/FF alongside Pompey & Guzz, including those in refit. The rest are either on their way east, invading Sierra Leone or at sea training.....
76% of the FF/DD force deployed, in transit to/from deployments, or on training.
Another snippet from the Vela deployment:
OCEAN plays a crucial role
Interesting stuff there relating to the different roles and capabilities of various aircraft types.