A leading expert on foreign policy reveals how tensions between America, NATO, and Russia transformed geopolitics in a Foreign Affairs Best Book of 2021   “Sarotte has the receipts, as it were: her authoritative tale draws on thousands of memos, letters, briefs, and other once secret documents—including many that have never been published before—which both fill in and complicate settled narratives on both sides.”—Joshua Yaffa, New Yorker   “The most engaging and carefully documented account of this period in East-West diplomacy currently available.”—Andrew Moravcsik, Foreign Affairs   Prize-winning historian, M.E. Sarotte pulls back the curtain on the crucial decade between the fall of the Berlin Wall and the rise of Vladimir Putin, when Americans and Russians—in conflict over NATO expansion and Europe's future—sowed the seeds of the tensions that shape today's world.