Behind every successful country there is a strong leader. William Lyon Mackenzie King (WLMK) was a gold mine for Canada during the Second World War. He was Canada's longest-serving Prime Minister (PM) and possessed political intelligence, skilled parliamentary tools and brilliant tactics. He was also the most important prime minister. Mackenzie King was an effective prime minister during World War II. It prevented the split between French Canadian and English; he meant well for Canada and stabilized the economy. During the First World War the French and English Canadians had a very unpleasant relationship due to conscription. With the help of almost all English-speaking Members of Parliament; Ignoring the French members, Prime Minister Robert Borden imposed compulsory conscription which caused a riot in Montreal. Shop windows were broken; the train carriages were overturned causing thousands of injuries and four people killed. On the other hand WLMK was well aware of this situation during World War II; he thought it was important to keep Canada united. In 1939 and 1940, on the campaign trail, King was against overseas conscription because he knew that most men would not want to serve overseas. However, King imposed conscription in the National Resource Mobilization Act for domestic service to help with wartime production. In 1942 King noted that Canada would need more troops due to the large losses suffered during the Battle of Dieppe. To avoid another revolt, he decided to call a plebiscite. He wanted Canadians to allow him to break his promise about conscription abroad; 69% of Canadians voted “yes” and 36% voted “no”. Mackenzie King always said, “not necessarily conscription, but conscription if necessary.” He's saying he wouldn't necessarily impose conscription, but if he felt it was a necessity he would impose it. King was very attentive