It’s been more than three weeks since Russia declared war on Ukraine. Here’s how each country is preparing for the next brutal stage of this conflict. Guest: Fred Kaplan covers national security for Slate and is the author of The Bomb: Presidents, Generals, and the Secret History of Nuclear War.  If you enjoy this show, please consider signing up for Slate Plus. Slate Plus members get benefits like zero ads on any Slate podcast, bonus episodes of shows like Slow Burn and Dear Prudence—and you’ll be supporting the work we do here on What Next. Sign up now at slate.com/whatnextplus to help support our work. Learn more about your ad choices. Visit megaphone.fm/adchoices