Like other medium to small countries, securing our home and economic zones should now be the key focus of our armed forces.
What other country is a UNSC member, member of the G7, a global center of finance (arguably The global Centre of Finance) founder of other states (who obviously have direct roots to the UK and it's population) and is mostly a large island off the coast of Europe?
In fact outside of France and Spain no one comes close in comparison of geography, cultural and linguistic influence, and blood connections to other parts of the globe.
Securing our economic zone is securing the North Atlantic at a minimum.
Securing our home requires we keep troubles far away. Not wait for them to arrive nearby.
Better Drake at Cadiz, than Harold at Hastings.
When a ICBM can reach us from almost the opposite side of the globe.
The idea events there have no bearing on us is naivety in the extreme.
Your electronic devices depend on materials mined from different continents.
Our copper mines are empty and the amount of rare earth metals in the UK would only be economic if we could not access larger and higher density deposits elsewhere.
Your customers are also spread around the world.
If you want the wealth and benefits of modern technology, then you are going to have to be involved outside the comfort zone of the North Sea and Channel.