Sir Julian Lewis: I will resist the temptation to ask the Foreign Secretary if he shares my feeling of disgust at the spectacle of the leader of the free world showering praise and admiration on the killer in the Kremlin. When he speaks to his counterparts, will he try to impress on them that the reason why George Kennan’s containment policy, to which he rightly referred, was so successful in preventing the cold war from turning into the third world war was that contentious territory was not demilitarised and left undefended? It worked in the case of West Germany, and it will have to be the only way that western Ukraine can equally be secured for the future.

[The Secretary of State for Foreign, Commonwealth and Development Affairs (Mr David Lammy): The containment strategy to which the right hon. Gentleman refers ran right through the Reagan years and beyond. In a sense, it is the conventional way to understand peace through strength, and we would do well to keep it at the front of our minds in the days and weeks ahead.]