It’s not all doom and gloom.
With the arrival of the first T45’s to Navy in 2009 combined with the new amphibious lift capability (Bay’s Albion’s Ocean etc.) and introduction of the Astutes we are in better shape today than we were in 82. Back then the RN was configured to fight ASW warfare against the Soviets in the North Sea / Atlantic. Today we can lift and support the whole of 3-Commando Brigade (42, 45, 40, 29 etc.) plus supporting arms (Challenger, AS90, Starstreak etc.) in dedicated ships. We may have a smaller Navy, but pound for pound it is far better equipped and capable for a broader range of missions.
Whether we like it or not Britain will have at least a divisional strength of ground troops committed to campaigns over the next 5 years. The current draw-down in Iraq will be immediately offset by increases in Afghanistan. This coming March will see the entire Parachute Regiment deployed (1,2,3 & elements of 4), plus a battalion of the Royal Regiment of Scotland. This has to be paid for, equipped and maintained. We all bemoan the shrinking of the RN, however the current threat is asymmetrical warfare fought on the plains of Afghanistan, and it is that that needs to be faced down and won.
Buying loads of shiny new boats is not going to defeat an enemy hidden in Sangin.