Final answer:
Milo's upset is linked to the historical conscription crisis in Canada during World War I, reflecting deep divisions and tensions, particularly among French Canadians.
Step-by-step explanation:
Milo's upset appears to be related to the historical context of Canada during World War I, rather than a game against Canadians. During this time, conscription was a deeply divisive issue. English Canadians generally supported Britain's war efforts and conscription, whereas French Canadians opposed it due to historical grievances, such as the loss of French language rights and a sense of abandonment by France after the British conquest in 1760.
The conscription crisis escalated to violence, with riots in Montreal and Quebec City, resulting in deaths and injuries. Thus, Milo's upset could be reflective of the tension and division within Canada during that period, which posed a moral or political conflict for him.