War is hell … but it’s even worse when you’re betrayed by the men who are supposed to be fighting alongside you. In Kirby Dick’s new documentary The Invisible War (which won the documentary audience award at Sundance), American servicewomen come forward to shed some light on an epidemic that’s all too often covered up: An estimated 30 percent of women in the military are sexually assaulted during their enlistment. In this exclusive clip from the documentary, due out in theaters June 22, servicewomen discuss the hostile atmosphere they faced when stationed at the Marine Barracks in Washington, D.C.