Scars of Nanking (2017)

During the brutal invasion of China in 1937 by Imperial Japanese forces, tens of thousands of civilians and prisoners of war are murdered and women raped in what is known simply as "The Rape of Nanking." This docudrama is a stirring account of a small band of courageous American missionaries who choose to stay in Nanking to try and protect a quarter million vulnerable Chinese civilians who are trapped in a city ruled by a savage, out of control army. Their stories are brought vividly to life through actual real-time letters and diaries as they bear witness to one of the worst wartime atrocities in history. IMDb