At their peak, the armies of Chu and Qin combined numbered over 1,000,000 troops, more than the massive campaign at Changping between Qin and Zhao 35 years earlier. The excavated personal letters of two Qin regular soldiers, Hei Fu (黑夫) and Jin (惊), records a protracted campaign in Huaiyang under general Wang Jian. Both soldiers wrote letters requesting supplies (clothing) and money from home to sustain the long campaign.