The 1917 Canadian federal election (sometimes referred to as the khaki election) was held on December 17, 1917, to elect members of the Canadian House of Commons of the 13th Parliament of Canada. Described by historian Michael Bliss as the "most bitter election in Canadian history", it was fought mainly over the issue of conscription (see  Conscription Crisis of 1917). The election resulted in Prime Minister Sir Robert Borden's Unionist government elected with a strong majority, and the largest percent share of the popular vote for a single party in Canadian history.