Create two historical characters from Canada. One of them must be someone who has served in a Canadian uniform on the front lines, such as a soldier or a nursing sister. The other character must be a civilian who stayed behind in Canada.
Create a background for them and be specific. For example, how old are your characters? What is their cultural, racialized, educational, religious, geographic, linguistic, economic, or social background? Are they Indigenous or non-Indigenous? Are they pro-war or anti-war? Are they male or female? If they are soldiers, what is their rank? Are they married? You can even name your characters if you choose.
The time is 1919 right after the end of the war. You get to decide where or how they are discussing the war. For example, a well-educated son of a wealthy Anglo-Canadian family had just returned from Europe where he had served as a respected Captain and his sweetheart are writing to each other. His sweetheart is also a wealthy Anglo-Canadian woman who spent the war volunteering.