China-Japan tensions rise on the 75th anniversary of the Nanjing massacre Sirens wailed in the Chinese city of Nanjing, 75 years after Japanese troops committed mass killing and rape in the city. China says 300,000 civilians and soldiers died in a spree of killing, rape and destruction in the six weeks after the Japanese military entered its then capital on December 13, 1937. Picture: HAP/Quirky China News / Rex Features