The US military killed 12 civilians in 2021, all in Afghanistan, a Pentagon report released on Tuesday claimed.
The Department of Defence "assesses that there were approximately 12 civilians killed and approximately five civilians injured during 2021 as a result of US military operations", said the report.
The US Congress has required the report, part of which is classified, to be produced each year since 2018.
The Pentagon has already acknowledged its responsibility for the deaths of 10 members of the same family, including seven children, during the chaotic US withdrawal from Afghanistan at the end of August 2021.
The public document says a civilian was killed in a US strike on January 8 in Herat, and another on August 11 in Kandahar. Two civilians were also wounded on January 18 in Kandahar.
The US military also admitted to having wounded three civilians on January 1 in a strike in Qunyo Barrow, Somalia.
The Pentagon also reassessed its counts from the years 2018 to 2020, recognising 10 more dead and 18 wounded, all in Syria.
Activists and charities regularly publish much higher assessments of deaths and injuries from US strikes in conflict zones.
The organization Airwars, which lists the civilian victims of air strikes around the world, estimated in its annual report published in May that between 15 and 27 civilians had been killed in US operations in Syria.
In January 2022, US Secretary of Defence Lloyd Austin urged the military to do more to avoid civilian casualties in air strikes, after several deadly mistakes that tarnished the reputation of the military.
Protecting civilians is a "strategic and moral imperative", Mr Austin said in a memo to the military chain of command.