 Complete the following phrase:  The first Soviet Championships League was introduced in 1946. The national team was formed shortly after, playing their first matches in a series of exhibitions against LTC Praha in 1948. In 1952, the Hockey Federation of the USSR joined the International Ice Hockey League, and so received the permission to play in the World Championships and the Olympics. That year is seen as the birth of the Soviet national ice hockey team, the predecessor team of the Russia mens national ice hockey team. The Soviets won the 