What country were both the 2015 and 2017 World Junior Ice Hockey Championships held?
2015 World Junior Ice Hockey Championships: The 2015 IIHF World Junior Championships was the 39th edition of World Junior Ice Hockey Championship, played from December 26, 2014 to January 5, 2015. 2015 World Junior Ice Hockey Championships:  It was co-hosted by Toronto, Ontario and Montreal, Quebec, Canada, and organized by Hockey Canada, Hockey Quebec, the Ontario Hockey Federation, the Montreal Canadiens, Maple Leafs Sports and Entertainment and Evenko.
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