But he could never possibly know what Zhang Biwu was thinking.According to Fu Yuzhi, Zhang Biwu should be considering the feasibility of this matter at this time.But he didn't know that Zhang Biwu had...id, "Once the troops are divided, it will take at least 100,000 soldiers to capture Yulin Prefecture in a short time. It would still take four or five days of heavy assault, even under the best circum...