The issues are too important to be left for the voters.

Let me make my point about Vietnam. When the Nixon initiation came into office, there were 550,000 Americans in combat. And ending the war was not a question of turning off a television channel. And so, debating on how we got there and what judgments were made was not going to help us.

In the period after the Second World War, there were still leaders in Europe who represented weak countries, but possessed a sense of global foreign policy. Nowadays, on the other hand, there are politicians who represent pretty powerful countries, but whose citizens are not prepared to sacrifice themselves for the state.

China had never had to deal in a world of countries of approximately equal strength, and so to adjust to such a world, is in itself a profound challenge to China, which now has fourteen countries on its borders, some of which are small, but can project their nationality into China, some of which are large, and historically significant, so that any attempt by Chinese to dominate the world, would involve in a disastrous for the peace of the world.

Even paranoid people have enemies.

Far too often the Ukrainian issue is posed as a showdown: whether Ukraine joins the East or the West. But if Ukraine is to survive and thrive, it must not be either side's outpost against the other - it should function as a bridge between them.

The first reactions are often instinctive. So one of the first things we said was that the Chinese had no right to inspect the plane, and that we had a sovereign right to. I don't know what the legal position is, but it was surely psychologically absolutely the unwise thing to do.