About 450 Cold War-era Minuteman nuclear missiles were only supposed to last 10 years. But now, these ICBMs have defended the U.S. for more than 50. The Air Force is planning to spend $130 billion on replacing them to boost the U.S. nuclear defense strategy with a new modern iteration—the Sentinel missile. WSJ explains the science and strategy behind nuclear missiles and the logistical challenges of the Sentinel project.Chapters:0:00 Expired ICBMs0:42 The U.S.’s nuclear triad3:12 Weaknesses5:00 What’s next for the Sentinel project?EquippedEquipped examines military innovation and tactics emerging around the world, breaking down the tech behind the weaponry and its potential impact.#Military #ICBM #WSJ