I want to know the answer to the following question:
What are some major cities occupied by the Chinese during the Second Sino-Japanese War?
All the background I'm provided with is that "The difficulty of accessing the region overland from the eastern part of China and the foggy climate hindering the accuracy of Japanese bombing of the Sichuan Basin, made the region the stronghold of Chiang Kai-Shek's Kuomintang government during 1938-45, and led to the Bombing of Chongqing.". Is that enough to answer the question?
Answer: no