I think we have deviated from my original point
My point was that commercial ship building is not necessarily a requirement for warship building
And that despite the UK not having any commercial shipbuilding it can still build aircraft carriers and nuclear submarines to the worlds highest standards because of its gene pool of knowledge and decades of experience
Japan, South Korea and China Account for building over 80% of the commercial shipbuilding trade in the world
none launched 2 x 65,000 Tons Carriers in 5 years like the UK did and all of them do have a carrier requirement
Look at the poor Russians, JSC one of the largest builders in the world couldn’t even manage a LHD had to buy from France, why ? Because they simply can’t build one
Of course commercial shipbuilding does overlap with warship construction
but it is not a pre-request