Chase J. Nielsen, one of the U.S. airmen who flew in the Doolittle raid following the attack on Pearl Harbor, was subjected to waterboarding by his Japanese captors. At their trial for war crimes following the war, he testified "Well, I was put on my back on the floor with my arms and legs stretched out, one guard holding each limb. The towel was wrapped around my face and put across my face and water poured on. They poured water on this towel until I was almost unconscious from strangulation, then they would let up until I'd get my breath, then they'd start over again... I felt more or less like I was drowning, just gasping between life and death." The United States hanged Japanese soldiers for waterboarding American prisoners of war.