The UK Government scrapped it's Harrier force at the same time as HMS Invincible and Hermes.
The new carriers are built and ready to go (mostly) but the air wing of F35Bs is building up very slowly for a variety of reasons, and the ones we have won't have a full weapons suite until late this decade, potentially early next decade.
In the meantime the USMC seems to be deploying Harriers with great effect in the Red sea.
With 7 confirmed Houthi drones shot down, this USMC Harrier pilot could be the First American ace since the Vietnam War
theaviationgeekclub.com
If only we had kept ours (they went to the US for spare parts) we would have a much more convincing Carrier Strike Group with the F35Bs as stealth air superiority fighters and Harriers as ground strike.
The UK sold the Harriers back in November 2011 & while the Marines operate the AV-8B's they are NOT identical, although they do share a multitude of common parts. The harriers were well used aircraft & the airframes were reaching the end of their operational lives, with costs around physical operation, maintenance / training & spares driving some of the choices made to sell them on.
However, the decisions around the carrier replacements / the F35B & general operations / dealing with military activities in the 2020's, actually revert back to decisions made in the late 90's / early 00's.
Successive govts (
post 9-11 & the GWoT), have had to make hard choices with limited funds & this meant 'deferring' delivery dates for F35's to the right, hence why we have a limited number at this time.
Sometimes hindsight is a wonderful thing & lack of budget can make UK Govt PLC do strange things that seem logical at the time (
to save money), but look incredulous 10 years after the event (
Go & look at the Nimrod story as an example of 40 years worth of ineptitude, for instance, failing that Go & look up the US's A-12 aircraft story). I am sure that in the mid / late 2030's, someone who isn't knowledgeable of the whole story / big picture from 1990 till 2025, will look at what is happening right now & ask WHY we did what we have.
Military procurement takes time, planning & LOTS of funds, so it's not quite like walking down to B&Q / Home Depot & asking for 50 wheel-barrows, because we're gonna move 25 tonnes of top-soil by hand over a weekend.
SA