Ukraine has detonated a massive underwater blast targeting the key road and rail bridge connecting the Russian-occupied Crimean peninsula to Russia, damaging its underwater supports. The operation, claimed by Kyiv’s SBU security service, is the second high-profile operation by Ukraine in days striking significant Russian assets after a sophisticated drone raid on Moscow’s strategic bomber fleet on Sunday. The attack came as Ukraine confirmed it had been invited to the Nato summit later this month, after President Volodymyr Zelenskyy warned it would be a “victory” for Russia if it was not present. The latest strike on the 12-mile-long Kerch bridge...