Dr Julian Lewis: President Putin has not even waited for the gas to start flowing through the Nord Stream 2 pipeline before exploiting the stranglehold that he has been building on the German economy. My right hon. Friend has already indicated that it may be difficult for Germany to impose severe sanctions against Russia if this invasion goes ahead, so does he not agree that it is vital from our security point of view that anyone with strong Russian or communist Chinese links should be kept well away from our own critical national infrastructure?

[The Prime Minister: My right hon. Friend is completely right. That is why we brought in measures to protect our national security and our critical national infrastructure, and to ensure that we are able to stop investment that we think would be detrimental to our national security. I am afraid that he is also right about the German dependence on Russian gas. We have to be respectful of this, but the simple fact is that about 3% the UK’s gas supplies come from Russia, whereas about 36% of German energy needs come from Russian gas. Germany is in a very different position from us, and its sacrifice is potentially very large. We must hope that in the interest of peace it is willing to make that sacrifice.]