Trident

Debate between Tom Tugendhat and John Glen

Tuesday 24th November 2015 Commons Chamber

[Tom Tugendhat]

My hon. Friend is absolutely right. Indeed, in highlighting the fact that war is the real enemy, we need look only at the loss of life that we have seen from war this century. In the first and second world wars, we saw terrible destruction from conventional weapons. Ironically, those weapons were stopped by the two attacks on Nagasaki and Hiroshima. Though those attacks were utterly awful, and I will not in any way say that they were not, it is quite clear that what they did was prevent the loss of hundreds of thousands of lives—not just American lives, but Japanese lives too. Many prisoners of war, many of our relatives, survived the second world war—I am talking about the relatives of Members not just on the Government Benches but on the Opposition Benches too—because the horror of those two attacks brought an early end to that war, and thank God they did, because hundreds of thousands of lives were saved.

However, nuclear weapons do not work alone. They work as part of the spectrum of defence. They are part of everything from the infantry soldier with his bayonet right the way through to the Trident nuclear submarine. They work across the entire spectrum, because it is only the range that allows Her Majesty’s armed forces to intervene at an appropriate level on each occasion. In exactly the same way as a diplomat requires the military for his words to have credibility, so too the soldier requires the submarine to know that he will not be undermined by an attack from one of the other states that may sympathise with the enemy.

[John Glen]

My hon. Friend is making a very powerful contribution. In his considerable experience working in the Ministry of Defence, has he ever seen a viable reorientation of defence expenditure away from the nuclear deterrent which would give us the same level of assurance around our defence?

[Tom Tugendhat]

Some work has been done on that, but only at a very basic level. The truth is that, when people rightly talk about the cost of defence and the cost of the nuclear deterrent, what they rarely consider is how much the conventional alternative costs. If we truly wish to deter and to persuade an enemy that we will not be steamrollered by their wish or blackmailed by their desires, we need to have a deterrent that allows us not to strike first, but to strike back. No conventional force offers the same pound-for-pound capability as the continuous at-sea nuclear deterrent. Members may not like it, but that is why the nuclear deterrent is the cheapest alternative.