Which countries were involved in the first World War?
Which countries were involved in the first World War?
user
There were many countries involved in the First World War, including China, Japan, Austria-Hungary, France, Germany, Britain, Turkey, Russia, the Ottoman Empire, the United States, Brazil, Italy, Serbia, and Canada.  Are there any specific countries you’re looking for?
assistant
Can you give me an example of one of the major battles of this war?
user
A major battle of the First World War was the Battle of Verdun in 1916.
assistant
Do you have any details on how long this battle lasted?
user