Warning: This book review contains graphic descriptions. While embedded with Ukrainian forces entering Bakhmut in December 2022, the bloodiest battle to date in the Russo-Ukrainian war, journalist Yaroslav Trofimov encountered anti-Kadyrov Chechen fighters fighting on the side of Ukraine. “It’s like Mariupol all over again,” one of the men tells him. “The Russians are wiping this city from the face of the earth.” Trofimov, chief foreign affairs correspondent for the Wall Street Journal, has been reporting on the ground in Ukraine since the start of the full-scale invasion in February 2022. His…