Serhii Plokhy, a leading historian of the Cold War and Ukrainian history, joins the stories of the Russo-Ukrainian War and the Chernobyl nuclear disaster to sound the alarm about the dangers of nuclear sites in a time of heightened conflict. There are 440 such sites around the globe today, and Russia's aggression against Ukraine will not be the last war in human history. The story of the men and women of Chornobyl is more than recent history: it is also a glimpse into the not-so-distant future.