The conversation between human and AI assistant.
[|Human|] Based on the reference text, what were the main countries and alliances of World War II?
[|AI|] The main countries involved in World War II were Germany, Japan, Italy, United Kingdom, United States, Soviet Union, and China and there were divided into two opposing alliances called the Allies and the Axis. The Axis alliance was composed of Germany, Japan, and Italy while the Allies alliance was composed of the United Kingdom, United States, Soviet Union, and China.
[|Human|] 
Based on the reference text, what were the main countries and alliances of World War II?