Of course the UK with our commitments and having nuclear subs should have the P8 and we should never have lost the MPA capability.
We should never have purchased 2 x carriers when we are unlikely to have sufficient aircraft to operate from both ships and with only 19 frigates and destoyers
We shouldn't have used PFI for our AAR force with its restrictions or withdrawn the Harrier and the Invincible class carriers
Until the next SDR next year we have no idea what the government will decide to prioritise or what money will be available so everything is speculative and they may decide we have survived this long with a MPA fleet do we need one?