We are still relatively well armed, we have helicopter carriers in service, a couple of new subs and more being built, as well as some new warships.
Not to mention the nuke carrying subs.
Aircraft though we have a gap after the retirement of the harriers, and as good as the typhoon euro fighters are.. They don't offer much of a tactical advantage when half of Europe is also using them.
Don't know we don't start building our own again, we build wings in this country we build engines, subs, ships.. But not aircraft?