Every month, Ukraine unleashes three or four attacks on the Crimea bridge. The latest one, last week, used underwater explosives to try to damage the support structure, Ukraine said. Each salvo forces the bridge to close, disrupting the main artery between the Russian mainland and the Black Sea peninsula for up to seven hours. While official information is scarce, a channel on the Telegram app warns motorists to avoid crossing, as it did during another recent attack, because a “hail of shrapnel” peppers the bridge when Russia’s considerable air defences blast the Ukrainian drones. Ever since Russia seized Crimea in...