Some in the west have celebrated this as victory over Russia. More likely, it will backfire on Ukraine's NATO and European aspirations.

I have always considered the sale, purchase and supply of gas or any other commodity as an entirely commercial matter. In that regard, even while posted to the British embassy in Moscow, I dismissed suggestions that Russia was weaponizing its energy supplies.

There was only one occasion, in 2009, when Russian gas supplies to Europe were halted temporarily following a dispute over Ukraine's non-payment of its accumulated debts. Russia worked hard to position itself as a reliable supplier of gas specifically because it sells gas domestically at heavily subsidized prices; gas exports therefore subsidize domestic consumption.