In 1991, Metallica performed at the Monsters of Rock festival in Moscow, a massive event held just months before the Soviet Union collapsed. The concert drew an estimated 1.6 million people, many experiencing a Western rock show for the first time, marking a cultural turning point. The crowd, which included soldiers and civilians, surged with energy as Metallica delivered one of their most intense sets. Helicopters circled overhead to monitor the unprecedented gathering, but the audience remaine