IN the row over a new shipbuilding strategy, the narratives are not unfamiliar. Defence Secretary Sir Michael Fallon says his plan to divide work on five new Type 31e frigates across Britain is good for the whole of the UK, including Scotland. First Minister Nicola Sturgeon says it is a betrayal of shipyard workers on the Clyde.

Betrayal is a serious charge. So let us consider the evidence. In November 2015, after the number of Type 26 frigates was cut from 13 to eight, then Prime Minister David Cameron told the Commons of the Type 31: “There will be … at least another five of the new type of frigate, probably more, and they can be built in Scotland if the conditions are right. … [The] only way these ships wouldn’t be built in Scotland … is if Scotland was independent.” And Sir Michael told Radio Scotland: “The first eight will be the Type 26 combat ships. After that, the Clyde will be building a lighter frigate [the Type 31)…” These words are unequivocal. Sir Michael’s upbeat talk yesterday of widening the skills base and maximising export potential was all eminently arguable. It’s also true that Mr Cameron’s “Scotland” could include Rosyth and that the Clyde can still compete for some Type 31 work. But that is not what was promised and is a damning example of ministers making pledges for political advantage – and later delivering something different.