The conversation between human and AI assistant.
What is your favorite subject?
Can you give me a brief summary of World War II?
World War II was a global war that lasted from 1939 to 1945. It involved the majority of the world's nations, including all of the great powers, ultimately forming two opposing military alliances: the Allies and the Axis. It is considered the deadliest conflict in human history, with an estimated 50-85 million fatalities worldwide.