content: http://legaciesofwar.org/resources/cluster-bomb-fact-sheet/  From 1964 to 1973, the U.S. dropped over 2 million tons of ordnance over Laos in 580,000 bombing missions, the equivalent of one planeload every 8 minutes, 24 hours a day, for 9 years.  At least 270 million cluster bomblets were dropped as part of the bombing campaign; approximately 80 million failed to detonate.  https://i.sli.mg/DxJDTu.jpg