IN THE run-up to Ukraine’s rocket attacks on the Antonovsky Bridge, a vital road crossing from the occupied city of Kherson to the eastern bank of the Dnipro river, security officials carefully studied a series of special reports. It was the summer of 2022 and Russia needed the bridge to resupply its troops west of the Dnipro. The reports contained research into two things: would destroying the bridge lead the Russian soldiers, or their families back home, to panic? And, more important, how could Ukraine’s government maximise the blow to morale by creating “a particular information environment”?