1. https://en.wikipedia.org/wiki/Civilian_casualties_from_U.S._...
[0] https://watson.brown.edu/costsofwar/figures/2021/WarDeathTol...
[1] https://www.npr.org/2021/06/24/1009846329/military-suicides-...
"According to the GTD, 80 Americans were killed in terrorist attacks from 2004 to 2013, including perpetrators and excluding deaths in Afghanistan and Iraq, the majority of which are combat-related. Of those 80 Americans killed, 36 were killed in attacks that occurred in the United States."
https://www.start.umd.edu/pubs/START_AmericanTerrorismDeaths...
And anyway, if you want to get into that question, then we'd have to start including the civilian deaths caused by ISIS, and that's going to make the balance even more favorable to drone strikes. There's no reason to limit the analysis to Americans, either. Dismantling Al Qaeda, ISIS and other terrorist networks contributed to the reduction in terrorist violence against many groups, not just Americans. Probably not even primarily Americans.
Not to mention the rather obvious fact that the interventions in question were designed to reduce terrorism, and so their efficacy can only be truly benchmarked against the counterfactual world in which they were not implemented. However, conveniently, the balance is still overwhelmingly favorable even in the actual world that we happen to inhabit.
So let's not speak with too much certainty. Drone operators have harrowing stories of false positives that were never reported as such. A false positive is a strike on civilians.
The Unseen Scars of Those Who Kill Via Remote Control https://www.nytimes.com/2022/04/15/us/drones-airstrikes-ptsd...