Since the September 11 attacks, the United States has carried out drone strikes in Pakistan, Yemen, Somalia, Afghanistan, Iraq and Libya.
"[1] Sometimes, the U.S. military conducted in-depth investigations in cases when U.S. forces killed or injured civilians (including drone strikes in Somalia and Yemen).
[6] Taken together, independent estimates from the non-governmental organizations New America and the Bureau of Investigative Journalism suggest that civilians made up between 7.27% to 15.47% of deaths in U.S. drone strikes in Pakistan, Yemen, and Somalia from 2009–2016, with a broadly similar rate from 2017–2019.
"[7] DNI explains this discrepancy as the result of three causes: (1) the U.S. government "uses post-strike methodologies that have been refined and honed over the years and that use information that is generally unavailable to non-governmental organizations," such as sensitive intelligence reliably indicating "that certain individuals are combatants" although but are being counted as non-combatants by nongovernmental organizations; (2) that the U.S. government uses "post-strike reviews involve the collection and analysis of multiple sources of intelligence before, during, and after a strike, including video observations, human sources and assets, signals intelligence, geospatial intelligence, accounts from local officials on the ground, and open source reporting" and that this often unique set of information "can provide insights that are likely unavailable to non-governmental organizations" and "frequently enables U.S. Government analysts to confirm, among other things, the number of individuals killed as well as their combatant status"; and (3) some terrorist groups and other actors deliberately promote misinformation "in local media reports on which some non-governmental estimates rely.
[12] Some scholars and human rights activists, such as Sarah Knuckey and Radhya Al-Mutawakel, criticize the U.S. Defense Department failing to "regularly interview" eyewitnesses as part of investigations into civilian casualties, arguing that this is "a critical flaw in their investigation methodology" and that the U.S. military could overcome obstacles such as a "lack of on-the-ground networks, security concerns and/or issues related to impartiality.
[21] In February 2013, Senator Dianne Feinstein, the chair of the Senate Intelligence Committee, said in a hearing, "But for the past several years, this committee has done significant oversight of the government's conduct of targeted strikes and the figures we have obtained from the executive branch, which we have done our utmost to verify, confirm that the number of civilian casualties that have resulted from such strikes has typically been in the single digits.
[23] During the Obama administration, proposed U.S. drone strikes in locations outside active war zones (i.e., in Pakistan, Yemen, Somalia) required high-level approval.
[24][25] The Obama administration process for approving drone strikes in such locations featured centralized, high-level oversight, based on intelligence about individuals suspected of terrorism activity.
[24] The process, formalized in a 2013 Presidential Policy Guidance document, was intended to reduce civilian casualties and blowback risks by requiring the targeted person to present a "continuing and imminent threat" to Americans.
[25] On July 1, 2016, President Barack Obama signed an executive order requiring annual accounting of civilian and enemy casualties in U.S. drone strikes outside war zones ("Areas Outside of Active Hostilities"), and setting a deadline of May 1 each year for the release of such report.
[29][30] However, since 2016, Congress has enacted legislation separately requiring the Defense Department to release "annual reports about bystander deaths from all of its operations" including strikes inside war zones (such as Afghanistan and Syria).
[28] After more than 30 UAV (Unarmed Aerial Vehicle) strikes hit civilian homes in Afghanistan in 2012, President Hamid Karzai demanded that such attacks end, but the practice continues in areas of Pakistan, Yemen, and Somalia.
US and Yemeni officials said the dead were members of the armed group Al-Qaeda in the Arabian Peninsula (AQAP), but witnesses and relatives told Human Rights Watch the casualties were civilians.
Witnesses and relatives told Human Rights Watch that no members of AQAP were in the procession and provided names and other information about those killed and wounded.
The local governor and military commander called the casualties a "mistake" and gave money and assault rifles to the families of those killed and wounded – a traditional gesture of apology in Yemen.
Grégoire Chamayou's analysis, of one three-hour-long surveillance and attack operation on a convoy of three UAVs that killed civilians in Afghanistan in February 2010, shows a typical, if notorious, case.
Noted sociologist Amitai Etzioni, writing in a 2013 Military Review article concluded "the main turning point concerns the question of whether we should go to war at all.