Historically, we have followed disarmament negotiations very closely. That includes everything from agreements to ban land mines to regulation of certain non-lethal weapons, for example, blinding weapons. We have also looked at conventional forces limitations, and we followed all the nuclear negotiations extremely closely.
We've also looked at nuclear posture and the scope. Our defence and security committee has done that. I'm not sure the posture is “launch-on-warning”, as you said. I don't think they are on launch-on-warning. I don't think that's the case right now.
In terms of tactical nuclear weapons or theatre nuclear weapons, we have looked at that recently. I suppose the overall conclusion was, “Look, you'd be crazy not to be concerned about nuclear weapons.” Any sane person is concerned about nuclear weapons. However, generally speaking, you are less concerned about the few hundred held by allies and a lot more about the few thousands that are pointing at you from the other side. The assessment that our committee made is that there doesn't seem to be any real, genuine interest on the Russian side in pursuing disarmament at this stage.
For example, just looking at our list of topics for 2018, it's true that we're not actually looking at arms control at the moment, just because there are so many other issues that are, frankly, more immediately pressing.