As many as 19,000 service members are sexually assaulted each year. A small fraction of those cases -- around 2,500 a year -- are actually reported, and a much smaller fraction are prosecuted.
The Senate Armed Services held a hearing on sexual assaults in the military, following a high profile case in which Lt. Col. James Wilkerson was convicted by a military jury of "abusive sexual contact." After the trial and conviction, a Lieutenant General dismissed the charges, without having to provide an explanation.