Nothing concentrates minds like a war, along with all the domino effects it precipitates. In a globalised world with (as it turned out) extravagantly overextended supply chains, the effect of 190,000 Russian soldiers occupying a relatively modest proportion of the territory of Ukraine, a country previously peripheral to geopolitical priorities, produced a disproportionate global outcome, nowhere more dramatically than in the field of energy supply and security. Overnight, it became a different world.