Policy shifts

I wonder whether the admirals and colleagues who fear the effects of the loss of Trident (your report, 15 April) remember the abandonment of the “Two Power Policy”, once regarded as permanent.

That was the doctrine that the British Navy must always be strong enough to defeat the combined navies of any other two powers in the world. That has long gone and it will benefit both Scotland and the remainder of the UK when Trident follows it.

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David Stevenson

Blacket Place

Edinburgh