In this pool photograph distributed by the Russian state agency Sputnik, Russia’s President Vladimir Putin delivers his address in Moscow on March 23, 2024, the day after a gun attack on the Crocus City Hall in Krasnogorsk. Camouflaged assailants opened fire at the packed Crocus City Hall in Moscow’s northern suburb of Krasnogorsk on March 22, 2024, evening ahead of a concert by Soviet-era rock band Piknik in the deadliest attack in Russia for at least a decade. Russia on March 23, 2024, said it had arrested 11 people – including four gunmen – over the attack on a Moscow concert hall claimed by Islamic State, as the death toll rose to over 100 people. (Photo by Pavel Byrkin / POOL / AFP)