I want to know the answer to the following question:
What did Qi Jiguang's private army do?
All the background I'm provided with is that "Being a classically educated official, he took his blueprint for the Xiang Army from the Ming general Qi Jiguang, who, because of the weakness of regular Ming troops, had decided to form his own "private" army to repel raiding Japanese pirates in the mid-16th century.". Is that enough to answer the question?
Answer: yes