The Associated Press does not publicly identify victims of alleged sexual assaults.
Two female officers who served with Sinclair also testified that they had given the general nude photos at his request.
Sinclair is also accused of possessing alcohol in a war zone and disobeying orders. Maj. Gen. James Huggins, Sinclair's superior officer in Afghanistan, testified he ordered Sinclair to cease contact with the female captain after she reported the affair. Sinclair is alleged to have willfully disobeyed that order by then calling the woman's phone.
Sinclair has not yet spoken publically about the charges against him, but at the pre-trial hearing his defense lawyers tried to paint the female captain as a liar and a scorned lover who was trying to ruin Sinclair's life and military reputation. During the hearings, they characterized her as a manipulative "back-stabber" who blamed others for her mistakes.
The general's wife, Rebecca Sinclair, stayed away from the dayslong military hearing but later went public with an opinion piece in The Washington Post. In that column, she said she was not condoning her husband's infidelity, but she said that a decade of war had taken a toll on military couples and brought pressure on their marriages.
In an interview with the AP, Rebecca Sinclair said her husband called her last spring to tell her about the affair and allegations, and she said they were trying to mend their relationship.
Follow AP writer Michael Biesecker at www.twitter.com/mbieseck .