President Trump will get a nasty surprise next time he tries to bully Volodymyr Zelensky. He will threaten to cut off the intelligence – but he can’t. We live in a different world now where the proliferation of precision and accessibility of data means the state and the traditional large defence primes are being outmanoeuvred at every turn. The Ukrainian armed forces have shown that the West’s choice to invest in exquisite platforms that cost billions was wrong.

We were so convinced our enemies cared about casualty figures the way we did that we presumed that attrition was not going to be a major barrier and everything would be over in a few weeks. Our ammo stocks were the real giveaway. Nato countries were buying Formula One cars that they couldn’t afford to maintain, let alone lose. Only the US with its trillion-dollar budget could afford such purchases and even the Americans are now having a strategic rethink.