Prior to 2018, 63 of the 69 Olympic medals given in ice hockey have been won by just six nations. The United States, Canada, and the several iterations of Russia/USSR/whatever are three of those six nations. Name any two of the three other nations that have dominated Olympic ice hockey.
Czech Republic (Czechia), Finland, Sweden (edited at 2:08 pm, January 22, 2018 (EST))
Original Answer: Czech Republic, Finland, Sweden