ttp://en.wikipedia.org/wiki/Nanjing_Massacre 「However, in August of 1937, the Japanese army was faced with strong resistance and suffered heavy casualties in the Battle of Shanghai,
effectively destroying any possibility of realizing the Japanese proclamation of "三月亡華," or "Conquering China in Three Months."
(or in original Japanese "三日下上海,三月亡支那" or "Conquering Shanghai in Three Days, Conquering China in Three Months") 」
3日で上海を3ヶ月で中国を征服するという作戦を日本は立てていました。