Final answer:
Qin Shi Huang led multiple infrastructure projects, such as the initial phase of the Great Wall. However, the canal construction often associated with warfare was the Grand Canal, constructed during the Sui dynasty, not the Qin dynasty. This Grand Canal served multiple purposes but led to the downfall of the Sui Dynasty due to the cost and strain it put on the empire's people.
Step-by-step explanation:
The Qin Shi Huang, as the first emperor of the Qin dynasty, is known for his various infrastructure projects. However, there's a bit of confusion in your question. The canal you're referring to between the Xiang and Li rivers is renowned, but it was not constructed for the purpose of an attack on the Yue. This is likely a mix-up with another historical event.
Notably, Qin Shi Huang was more focused on other significant infrastructure projects such as the initial phase of the Great Wall to prevent invasions from northern nomadic tribes and erecting fortified towns. He also led expansions into different territories, including what we know as modern-day Vietnam.
On the other hand, the canal construction associated with warfare that you might be linking to the Qin period could be the Grand Canal, a significant feat of Sui Dynasty engineering. This waterway stretches over 1,100 miles from Hangzhou to Beijing and was most prolific in facilitating grain transport, moving troops, and promoting general integration within the empire. However, it led to overextension and eventual downfall of the Sui Dynasty due to its costly construction that severely strained its population.
Learn more about Qin Shi Huang and the Grand Canal