Iran’s Shahed drones have disrupted Red Sea shipping, threatened U.S. troops in the Middle East and caused chaos in Ukraine. These precise one-way attack suicide drones mark a major shift in drone warfare. WSJ looks at how Iran’s kamikaze drones work, how they are being used across the globe by militant groups and Russia and the defense mechanisms used against them. Chapters:0:00 Shahed drones0:31 What they are and how they work2:45 How they stack up to other drones4:01 Who’s using these drones?6:02 Defenses against these drones