How the IDF invented 'Roof Knocking', the tactic that saves lives in Gaza

Israel could have taken the easy way out and attacked without phone calls or warning strikes. But it didn’t. The IDF officers and soldiers in the command center knew what they had to do. https://www.jpost.com/arab-israeli-conflict/the-story-of-idfs-innovative-tactic-to-avoid-civilian-casualties-in-gaza-663170