A soldier waterboarded his four-year-old daughter because she was unable to recite her alphabet.
Joshua Tabor admitted to police he had used the CIA torture technique because he was so angry.
As his daughter 'squirmed' to get away, Tabor said he submerged her face three or four times until the water was lapping around her forehead and jawline.
Tabor, 27, who had won custody of his daughter only four weeks earlier, admitted choosing the punishment because the girl was terrified of water.
The practice of waterboarding was used by the CIA to break Al Qaeda suspects at Guantanamo Bay. Detainees had water poured over their face until they feared they would drown. President Barack Obama has since outlawed the practice.
Tabor, a soldier at the Lewis-McChord base in Tacoma, Washington, was arrested after being seen walking around his neighbourhood wearing a Kevlar military helmet and threatening to break windows.
Police discovered the alleged waterboarding when they went to his home in the Tacoma suburb of Yelm and spoke to his girlfriend.
She told them about the alleged torture and the terrified girl was found hiding in a closet, with bruising on her back and scratch marks on her neck and throat.
Asked how she got the bruises, the girl is said to have replied: 'Daddy did it.'
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