In the '30s-'40s of the 20th century the main military adversary of China was the Empire of Japan. In the context of weak domestic industrial base aviation China in this period completed mainly aircraft acquired in other countries. The main supplier of aircraft to the Chinese Air Force were the United States, and after the outbreak of war with Japan a large number of aircraft arrived in the years 1937-1940 from the Soviet Union. The game features fighting vehicles used in the Second Sino-Japanese War and the Civil War in China.