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Not a well thought out answer Gromit, of course they are imports as I pointed out, but you failed to mention our exports, and trading is a two way affair.
What will Europe and other countries buy from us, well take Rolls Royce Engines for a start, plus Machinery, chemicals, Rail equipment, Oil and petroleum products, and medicines all are Britain's largest export earners.
What do we export to Argentina? New Zealand? India? China?
I think you will find most if not all of what I have already pointed out, and many, many more besides.
Incidentally we also provide India, China and others with vast amounts of technical knowledge, this we do not give away free.
We may not have an Empire but we still have a Commonwealth.