Sure we have BAE systems, Babcock and Rolls Royce, but none of these companies can produce a whole weapon/plane/tank by themselves, without needing another 100 companies to supply components around the world.
The same goes with our European friends across the water; to make the Eurofighter Typhoon required hundreds of companies to collaborate across the UK/EU.
We need a bit more independence, more garden shed industry and localised companies.
The UK has a lot of pioneering knowledge and continues to make breakthroughs but it would be better if we could be a bit more selfish and make our own stuff with our own supply chain.
To those that argue, "we live in a global world", "everything is more complex now", "UK defence can't make everything" - are you so sure of that?
Just an example - the Spitfire was wholly made in the UK in the 1940s with 200 companies subcontracted from big cities to small towns across the country.