Defence Policy: Deterrence

Lord Trefgarne Excerpts

Thursday 31st October 2024 Grand Committee

Asked by

[Lord Trefgarne]

To ask His Majesty’s Government whether deterrence remains a core element of the United Kingdom’s defence policy.

[Lord Trefgarne (Con)]

My Lords, I will not detain the Committee for all the time allocated to me but will do my best to be clear and precise. Deterrence covers a wide range of defence activity. Nuclear is at the top. We have never fired a nuclear weapon in anger, following the two weapons fired by our US allies to end the Second World War. Nuclear weapons are to be used only when our “supreme national interest” so requires. So far, that has not occurred. I hope I can be assured that the new Defence Ministers in post have accepted briefings on these matters, whatever their inclinations may be.

At the other end of the scale, we cast our minds back to 1982 when HMS “Endurance” was on patrol in the south Atlantic. We withdrew it, somewhat unwisely, and the rest is history. The noble Lord, Lord West, who is not here this afternoon, played an important part in the Falklands conflict all those years ago, as I believe did the noble and gallant Lord, Lord Stirrup. Are any British forces deployed to the south Atlantic at present? It seems that potential enemies there are again making unhelpful noises about the Falkland Islands. They were easily deterred last time by a single vessel; when we withdrew it, the rest became history.

Yesterday we heard from the Chancellor about defence spending generally. I felt that her remarks were not wholly awful. But deterrence has to be credible, and I hope that point is made to Chancellor Reeves as well as to the rest of us. There are also threats elsewhere in world, not just in the south Atlantic, and I hope we are taking account of those. I do not intend to detain your Lordships any longer.