Thompson, 43, has been charged under the sections of the Uniform Code of Military Justice that deal with sexual assault, failure to obey an order or regulation, and conduct unbecoming an officer. His court-martial opened Tuesday at the Navy Yard in Washington.

Burke said her client was assaulted after she went to a party at an off-campus "football house" in Annapolis.

"She woke up at the football house the next morning with little recall of what had occurred," Burke said.

Burke said the midshipman went with a friend to report the incident to the Naval Criminal Investigative Service. The woman told investigators she had been intoxicated and "could not provide much information."

What followed, Burke said, "was the all-too-typical military response: The victim was disciplined for drinking, but nothing happened to the football players."

Burke said one of the football players approached the woman and told her not to cooperate with NCIS. The woman followed that advice, Burke said, but still was "ostracized and retaliated against by the football players and the Naval Academy community."

The football players remained on the team for the fall 2012 season, Burke said.

"Indeed, as a bonding pep talk before the final football game, they even talked about the incident," Burke said. "This was done in front of the coaches, who took no action."

Burke said Miller closed the investigation without charges. She said the midshipman contacted her early this year, and the academy reopened the investigation.

She said Miller now has the findings of the 2012 investigation and a 2013 report "with additional corroborating evidence obtained through wiretaps" conducted this year.

Schofield, the academy spokesman, disputed the sequence of events given by Burke.

"There is — in fact — no final NCIS report that has been submitted to the Superintendent regarding this investigation. It is an ongoing matter," he said.

Burke, who said she plans to move her practice this summer to Baltimore, also represents a former midshipman in a federal lawsuit against Defense Secretary Robert Gates and former Naval Academy Superintendent Vice Adm. Jeffrey L. Fowler.

That woman says she was raped on separate occasions by two different midshipmen. After she reported the assaults to an academy counselor, she alleged, the academy forced her to drop out.

The service academies have grappled for years with sexual assaults. In one high-profile case involving a football player, former quarterback Lamar S. Owens Jr. was acquitted of rape stemming from what he said was consensual sex with a female classmate in January 2006, but expelled from the academy.

In a separate incident, former teammate Kenny Ray Morrison was found guilty of indecent assault and conduct unbecoming an officer for having sex with a female midshipman without her consent in February 2006. He was sentenced to two years in prison.

The Pentagon said in January that reports of sexual assaults at the Naval Academy fell from 22 two years ago to 13 last year. But the Military Academy at West Point, N.Y., and the Air Force Academy at Colorado Springs, Colo., saw reports increase during the same period, resulting in an overall spike of 23 percent across the academies.

It remains unclear how accurately the number of reports reflects the number of actual assaults. Officials believe many attacks go unreported, and they conduct surveys of midshipmen and cadets to get a clearer picture.

At the Naval Academy, 15.1 percent of women and 2.6 percent of men said they had experienced unwanted sexual contact, both down slightly from a 2010 survey.

In a December memo to the secretaries of the Army, Navy and Air Force, then-Defense Secretary Leon Panetta said the Annual Report on Sexual Harassment and Violence at the Military Service Academies showed that "we have a persistent problem," and he called for a "strong and immediate response."