If anyone produces a ‘history in 100 objects’ for the first half of the 21st century, one of those objects could well be a German helmet from the consignment of 5,000 dispatched to Ukraine, as the Russians seemed about to invade. The donation was noteworthy because it was met not with gratitude but with ridicule, not only from Ukrainians on social media – will it be pillows or duvets next time? – but from Germans themselves.