I'm going to have to be very circumspect.
Submarines generate an intense amount of confidential information because of the sources, and how we know what submarines are up to is a very compartmental type of information.
Suffice it to say, countries are building submarines. In the northern oceans new ballistic missile-carrying and new attack submarines have been built and are being trialled after a long lull in shipbuilding.
In the Indian Ocean new submarines have been imported from a submarine shipbuilder. One of our global competitors has been selling a certain type of submarine to foreign navies, and submarines are being used by these navies as area or access denial tools. They are an incredible weapons system that own vast areas of ocean because they're hidden in it and you must assume, like a mine, that they are there somewhere. It gathers intelligence and it just forces everybody to stand back and take a far deeper breath when operating in that area.
The utility of submarines to our potential adversaries is quite clear to them, and they're good shipbuilders in this regard.
We work with an alliance and the power of the alliance of Britain, France, the United States, Norway, Canada, the Netherlands, Germany, and all our NATO allies together creates a much stronger force than a single potential adversary.