https://m.dw.com/en/wartime-rape-the-unspoken-weapon/av-53839355
Trigger warning*
It's a horrible topic, but this is a good documentary on it. It's recently been translated in English. Covers Japan, Germany, Congo, Rwanda, former Yugoslavia and looks at the legal issues too.
It's obviously a brutal topic so don't watch if it's too much. I thought it's an important synopsis of a highly important topic though.
From the documentary summary:
"Over the past 30 years, sexual violence has been increasingly deployed as a strategic weapon by state military forces, paramilitaries, and armed groups. The victims suffer lasting trauma and persistent shame, yet the subject largely remains a taboo. The International Day for the Elimination of Sexual Violence in Conflict is observed on June 19. The first of these United Nations resolutions condemning sexual violence as a weapon of war was issued in 2008. More than ten years later, this documentary asks why international justice has failed to put an end to the impunity that generally follows this crime."