"National strategies must ensure our side stays well in advance of any possible opponents or array of possible opponents."
I'm afraid that's only an aspiration. The RN also used to aim to be able to fight all comers at once but by the early 1900's it the costs just became extreme - hence they started signing treaties with Japan and France
I feel that right now most Western democracies are still very much kit focussed - whilst the Ukraine war shows (again) how just how many Poor Bloody Infantry you're going to need when a real war breaks out.