Relations between Canada and the Republic of Quebec were never very good, Canada had suffered several invasions during the Seven Years War and another one during the American Revolutionary War. It was this threat to its dominion, which made Britain ally with the United States in 1904 and by extension, the German Empire. When the Great War arrived in August 1914, Canada quickly invaded Quebec. However, the republic, despite nearly all aid from France ending after July 1916, was able to hold out for the whole of the war until the capture of Montreal, finally broke the country's back and forced a surrender. Quebec was annexed by Canada.
Between the wars (1919 to 1939)
The Canadian occupation of Quebec was brutal, although military courts did exist, they were frequently very harsh and often, ignored things Canadian soldiers did, while severely punishing Quebecois for minor offenses. Schooling was also changed dramatically, with national heroes like Francis Gaston de Levis (who defeated the British at Quebec during the Seven Years War) was rewritten. A few Quebecois, however, despite the harsh measures, remained determined to fight against them by various terrorist means. However, many would be resistance fighters simply bided their time, waiting for the right time to rebel.
The World War (1939 to 1942)
For the first three years of the war, Quebec remained quiet, even after the CSA invaded the US. Attempts by Joe Dowling to stir up a rebellion failed, until King Charles XI agreed to add his voice to the encouragements. In early 1942, several car bombs were detonated across Canada and Quebec, the culprits were never found, but they did cause the Canadians to reduce the rations to Quebecois and also to reintroduce a curfew. Mail bombs were also used throughout most of 1942. The final spark may have come in July 1942, when Canadian troops executed Marie Lucien, a mother of a three year old child and a bomb maker. Not only was the execution loudly publicized, the executed also refused to ask for mercy, as the Canadians were reluctant to provoke the Quebecois any more than they already where. After this execution and Marie Lucien's widely publicized martydom, Quebecois rebels gathered in several major cities.
The Rebellion (October 1942 to June 1944)
On October 24th 1942, Quebecois rebels seized control of a number of vital targets in and around the cities of Trois-Reveries and Montreal. The majority of Canadian troops were newly trained and thus, unprepared for the savageness of the Quebecois attack. Despite a fierce defense, the Occupation HQ was occupied within a few hours of the start of the revolt. The head of the Occupation was soon tried for murder and crimes against humanity and executed. Canada could spare few troops, mainly due to the massive battles in Chicago that were at their height in the early winter of 1942. By November, Quebecois troops had seized Quebec City. For most of the next year, the rebels were largely left alone, with only a few minor skirmishes taking place. However, following the cataclysmic Confederate defeat at the Toledo salient and the collapse of their positions in Indiana and Ohio, the Canadians were able to send troops north to deal with the rebels. The first target, was Montreal. Quebecois troops fought street-to-street, which resulted in the flattening of most of the city. However, the Canadians were too numerous for the Quebecois to stop and by the start of 1944, Montreal had been cleared of rebels. Trois-Reveries was the next target, resistance was almost as strong as in Montreal, but by this point, the Canadians had managed to relaunch several of the St. Lawrence battleships from the Great War and they quickly destroyed Quebecois resistance within the city. The final target was Quebec City itself, rather than fight in the city, Quebecois troops, decided to fight an actual battle in open country. However, the outcome was largely decided by this point and the battle was easily won by the Canadians. On June 10th 1944, the last Quebecois rebels surrendered.