Nanjing Massacre 80th anniversary commemoration event held in Frankfurt, Germany

Georg Rosen, descendant of diplomat Georg Rosen, speaks during the Nanjing Massacre 80th anniversary commemoration event in Frankfurt, Germany, Dec. 13, 2017. Diplomat Georg Rosen worked as secretary at the German Embassy in Nanjing and established the Nanjing Safety Zone together with John Rabe during the Nanjing Massacre. (Xinhua/Luo Huanhuan)