England, 22, was found guilty of one count of conspiracy, four counts of maltreating detainees and one count of committing an indecent act. She was acquitted on a second conspiracy count.
The jury of five male officers needed slightly more than two hours to reach its verdict. Her case now moves into the sentencing phase, which will be determined by the same jury of five Army officers. She faces a maximum 10 years in prison.
England's trial is the last for a group of nine Army reservists charged with mistreating prisoners at Abu Ghraib. Two others have been convicted at trial and the remaining six made plea deals. Several of those soldiers testified at England's trial.
Prosecutors used graphic photos of England to support their contention that she was a key figure in the abuse conspiracy. One photo shows England holding a naked detainee on a leash, while in others she smiles and points to prisoners in humiliating poses. The conspiracy charge that she was acquitted on was related to that photo.
They also pointed to her own statement to Army investigators in January 2004 in which she said the mistreatment was done to amuse the U.S. guards at Abu Ghraib.
"The accused knew what she was doing," said Capt. Chris Graveline, the lead prosecutor. "She was laughing and joking. ... She is enjoying, she is participating, all for her own sick humor."
Capt. Jonathan Crisp, England's defense lawyer, countered that England was only trying to please her soldier boyfriend, then-Cpl. Charles Graner Jr., labeled the abuse ringleader by prosecutors.
"She was a follower, she was an individual who was smitten with Graner," Crisp said. "She just did whatever he wanted her to do."
England has said that Graner, now serving a 10-year sentence, fathered her young son.
The defense argued that England suffered from depression and that she has an overly compliant personality, making her a heedless participant in the abuse.